A1 Idiom Informal 5 min read

Queimar as pestanas

To burn the midnight oil

Literally: To burn the eyelashes

In 15 Seconds

  • Means studying or working very late.
  • Literal: burning eyelashes.
  • Origin: close work by dim lamps.
  • Use for intense, late-night effort.

Meaning

This phrase means you're staying up super late, probably past midnight, to get something done. It's usually about studying hard or working intensely on a project. Think of that feeling of tired determination when you've got a deadline looming!

Key Examples

3 of 12
1

Texting a friend about upcoming exams

Não sei como vou passar na prova de cálculo, vou ter que `queimar as pestanas` a noite toda!

I don't know how I'll pass the calculus exam, I'll have to burn the midnight oil all night!

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z"/></svg>
2

Talking to a colleague about a project deadline

O prazo para o relatório é amanhã, então hoje à noite vamos todos `queimar as pestanas` no escritório.

The deadline for the report is tomorrow, so tonight we're all going to burn the midnight oil at the office.

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>
3

Instagram caption for a late-night study session

Café e livros são meus melhores amigos esta semana. #`QueimandoAsPestanas` #FocoTotal

Coffee and books are my best friends this week. #BurningTheMidnightOil #TotalFocus

<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>
🌍

Cultural Background

Commonly used in university towns like Coimbra. Used widely in corporate and academic settings. It is a very relatable phrase for anyone who has ever pulled an all-nighter.

💡

Context is key

Only use this with people you are comfortable with. It's not for formal emails.

💬

Shared experience

Use this to bond with others over shared hard work.

In 15 Seconds

  • Means studying or working very late.
  • Literal: burning eyelashes.
  • Origin: close work by dim lamps.
  • Use for intense, late-night effort.

What It Means

This isn't about actual fire hazards for your eyebrows! Queimar as pestanas means to study or work really late into the night. It paints a picture of someone hunched over books or a computer, so focused that time just flies by. You're sacrificing sleep for a goal. It carries a vibe of dedication, maybe a little exhaustion, but ultimately, hard work paying off. It's that feeling when you're burning the midnight oil, pushing through the darkness to see the dawn of completion. Who knew your eyelashes could be so industrious?

Origin Story

The origin of queimar as pestanas is quite literal and visual. Imagine scholars or students in the past. Light sources were dim and expensive – think candles or oil lamps. To study for long hours, especially at night, they had to sit very close to these lamps. This intense proximity meant the flickering flame and heat could literally singe or 'burn' the fine hairs around their eyes – their eyelashes (pestanas). It was a common, albeit uncomfortable, sign of serious academic effort. So, it's not just a saying; it was a physical reality for dedicated learners back in the day. Talk about eye-opening study sessions!

How To Use It

Use queimar as pestanas when you're talking about putting in extra hours to finish a task. It’s perfect for describing late-night study sessions before exams or intense work periods before a project deadline. You can use it to explain why you're tired or unavailable. It adds a touch of dramatic flair to your explanation. It implies a significant effort beyond the normal routine. Think of it as a colorful way to say 'I worked really hard, really late.' It’s a badge of honor for the sleep-deprived!

Real-Life Examples

  • My brother had to queimar as pestanas all week to finish his thesis.
  • I’ve been queimando as pestanas lately for this big presentation at work.
  • She’s always queimando as pestanas before finals week, fueled by coffee and sheer willpower.
  • We have to queimar as pestanas tonight if we want to launch the app by tomorrow.
  • Remember that time you queimaste as pestanas for hours trying to beat that final boss? That was dedication!

When To Use It

Use this phrase when you want to emphasize the intensity and duration of your late-night efforts. It’s great for informal chats with friends, family, or colleagues you know well. It fits perfectly when discussing academic struggles, demanding work projects, or even personal hobbies that require significant time investment. It’s also useful when you want to sound a bit more expressive than just saying ‘I stayed up late’. It’s like adding a little spice to your story of hard work. Just be ready to explain if someone looks confused about your eyelashes.

When NOT To Use It

Avoid queimar as pestanas in very formal settings. Think high-stakes business presentations to clients you don't know, or official reports. It’s too colloquial and vivid for such contexts. Also, don't use it if you only stayed up a *little* bit late, like until 10 PM. The phrase implies a significant, often exhausting, effort. Using it for minor late nights might sound like you're exaggerating or being overly dramatic. It’s not for when you just watched one extra episode of your favorite show, unless that show was a 10-hour documentary on quantum physics.

Common Mistakes

A common mistake is using it too literally or in the wrong context. Some learners might think it's about actual eye damage, which is funny but incorrect. Another error is applying it to situations that aren't about intense effort or late hours. For example, saying 'I queimei as pestanas at the beach' makes no sense! Stick to work or study contexts. It’s also easy to get the verb conjugation wrong, especially for beginners. Remember the verb is queimar (to burn).

  • ✗ I queimei os olhos last night studying. → ✓ I queimei as pestanas last night studying.
  • ✗ I need to burn my eyebrows for this exam. → ✓ I need to queimar as pestanas for this exam.

Similar Expressions

In English, the closest idiom is 'to burn the midnight oil.' Both phrases vividly describe working late into the night. Another English expression is 'to pull an all-nighter,' which implies staying awake the entire night, often a more extreme version. In Portuguese, you might also hear virar a noite (to turn the night/stay up all night), which is similar but focuses more on just staying awake rather than necessarily working or studying intensely. Estudar até tarde (to study until late) is a more direct, less idiomatic way to say it.

Memory Trick

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Picture a student with huge, expressive eyelashes (pestanas). They're leaning super close to a flickering candle, trying to read. The candle flame is so close it's *almost* touching their lashes, making them feel like they're 'burning' them. That intense focus and proximity to the light source is the key. So, pestanas + queimar = late-night studying. Easy peasy, right? Just try not to actually set anything on fire!

Quick FAQ

  • Is it dangerous? No, it's just an expression! No actual burning happens.
  • Can I use it for fun activities? Usually not. It's mostly for work or study.
  • Does it mean I have to stay up ALL night? Not necessarily, but it implies working significantly past normal hours.

Usage Notes

This idiom is firmly in the informal register. While understood widely, avoid it in highly formal settings like official reports or speeches. It vividly describes intense, late-night effort, primarily for studying or work, and should not be used for casual late nights or leisure activities.

💡

Context is key

Only use this with people you are comfortable with. It's not for formal emails.

💬

Shared experience

Use this to bond with others over shared hard work.

Examples

12
#1 Texting a friend about upcoming exams
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z"/></svg>

Não sei como vou passar na prova de cálculo, vou ter que `queimar as pestanas` a noite toda!

I don't know how I'll pass the calculus exam, I'll have to burn the midnight oil all night!

Expresses the need for intense, late-night study due to a difficult subject.

#2 Talking to a colleague about a project deadline
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

O prazo para o relatório é amanhã, então hoje à noite vamos todos `queimar as pestanas` no escritório.

The deadline for the report is tomorrow, so tonight we're all going to burn the midnight oil at the office.

Highlights a collective, late-night work effort to meet a deadline.

#3 Instagram caption for a late-night study session
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Café e livros são meus melhores amigos esta semana. #`QueimandoAsPestanas` #FocoTotal

Coffee and books are my best friends this week. #BurningTheMidnightOil #TotalFocus

Uses the gerund form in a hashtag to show ongoing late-night studying.

#4 WhatsApp message to a friend
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Desculpa não te responder antes, estava `queimando as pestanas` para terminar um trabalho da faculdade.

Sorry I didn't reply sooner, I was burning the midnight oil finishing a college assignment.

Explains a delay in communication due to intense, late-night academic work.

#5 Humorous comment about a difficult task
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Tentar montar esse móvel sueco sem o manual foi quase `queimar as pestanas`... mas com mais frustração!

Trying to assemble this Swedish furniture without the manual was almost like burning the midnight oil... but with more frustration!

Uses the phrase humorously to compare a frustrating task to intense effort.

#6 Discussing a past challenge
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M4.318 6.318a4.5 4.5 0 000 6.364L12 20.364l7.682-7.682a4.5 4.5 0 00-6.364-6.364L12 7.636l-1.318-1.318a4.5 4.5 0 00-6.364 0z"/></svg>

Lembro-me de quando `queimei as pestanas` durante semanas para aprender a tocar violão.

I remember when I burned the midnight oil for weeks to learn to play the guitar.

Emphasizes the sustained, dedicated effort required to master a skill.

#7 Job interview preparation
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M21 13.255A23.931 23.931 0 0112 15c-3.183 0-6.22-.62-9-1.745M16 6V4a2 2 0 00-2-2h-4a2 2 0 00-2 2v2m4 6h.01M5 20h14a2 2 0 002-2V8a2 2 0 00-2-2H5a2 2 0 00-2 2v10a2 2 0 002 2z"/></svg>

Para a entrevista de amanhã, decidi `queimar as pestanas` revisando tudo.

For tomorrow's interview, I decided to burn the midnight oil reviewing everything.

Shows diligent preparation for an important professional event.

#8 TikTok comment about a streamer's dedication
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Esse streamer `queima as pestanas` todo dia pra gente! Merece nosso apoio!

This streamer burns the midnight oil every day for us! Deserves our support!

Praises a content creator's consistent late-night effort for their audience.

Mistake: Using the wrong verb Common Mistake

✗ Vou `cozinhar as pestanas` para estudar.

✗ I'm going to cook the eyelashes to study.

Incorrect verb 'cozinhar' (to cook) used instead of 'queimar' (to burn).

Mistake: Literal interpretation Common Mistake

✗ Cuidado para não `queimar as pestanas` de verdade com a vela!

✗ Be careful not to actually burn your eyelashes with the candle!

Takes the idiom literally, missing the figurative meaning of intense study.

#11 Ordering food delivery late at night
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Estou `queimando as pestanas` com este código, pode pedir uma pizza para mim?

I'm burning the midnight oil with this code, can you order me a pizza?

Justifies ordering food late because of intense work.

#12 Vlogging about a challenging study trip
<svg class="w-5 h-5" fill="none" stroke="currentColor" viewBox="0 0 24 24" aria-hidden="true"><path stroke-linecap="round" stroke-linejoin="round" stroke-width="2" d="M14.828 14.828a4 4 0 01-5.656 0M9 10h.01M15 10h.01M21 12a9 9 0 11-18 0 9 9 0 0118 0z"/></svg>

Dia 5 em Lisboa: `Queimando as pestanas` na biblioteca antes do exame final. A vista é linda, mas o dever chama!

Day 5 in Lisbon: Burning the midnight oil in the library before the final exam. The view is beautiful, but duty calls!

Describes the intense study focus even while traveling.

Test Yourself

Complete the sentence with the correct idiom.

Para terminar o relatório, tive de __________.

✓ Correct! ✗ Not quite. Correct answer: queimar as pestanas

The idiom for working late is 'queimar as pestanas'.

🎉 Score: /1

Visual Learning Aids

Practice Bank

1 exercises
Complete the sentence with the correct idiom. Fill Blank A1

Para terminar o relatório, tive de __________.

✓ Correct! ✗ Not quite. Correct answer: queimar as pestanas

The idiom for working late is 'queimar as pestanas'.

🎉 Score: /1

Frequently Asked Questions

2 questions

No, it is specifically for intellectual or academic work.

Not at all, it's a very common, harmless idiom.

Related Phrases

🔄

Virar a noite

synonym

To stay up all night

🔗

Estudar a fundo

similar

To study thoroughly

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