ne pas prendre des vessies pour des lanternes
To be questioned
Literalmente: Not to mistake bladders for lanterns
Em 15 segundos
- Don't be fooled by appearances or lies.
- See through someone's attempt to trick you.
- Distinguish between a cheap imitation and the real thing.
Significado
This phrase means not to be fooled or naive. It is used when someone is trying to trick you or make something bad look good, and you want to say you aren't falling for it.
Exemplos-chave
3 de 6Reacting to a suspicious sales pitch
Ce prix est trop bas pour être vrai, ne prenez pas des vessies pour des lanternes.
This price is too low to be true, don't be fooled by appearances.
Texting a friend about a bad date's excuses
Il dit qu'il a oublié son portefeuille ? Ne prends pas des vessies pour des lanternes !
He says he forgot his wallet? Don't fall for his nonsense!
Discussing politics with family
Les politiciens nous font souvent prendre des vessies pour des lanternes.
Politicians often try to pull the wool over our eyes.
Contexto cultural
The French pride themselves on 'Cartesian logic.' This idiom is a linguistic badge of that logic—refusing to accept an irrational or false premise. In Quebec, while the phrase is understood, you might also hear 'se faire passer un sapin' (to be passed a fir tree), which relates to being sold a low-quality wood. Belgian French uses this idiom frequently in political satire, often appearing in cartoons to mock complex European Union regulations. In many West African countries, French idioms are blended with local metaphors, but 'vessies pour des lanternes' remains a mark of high-level formal education.
Use the Negative
You will sound much more natural and confident if you use this in the negative ('Je ne prends pas...') to show you are sharp.
Don't over-explain
The idiom is powerful because it's visual. You don't need to explain that you know it's a lie; the phrase does that for you.
Em 15 segundos
- Don't be fooled by appearances or lies.
- See through someone's attempt to trick you.
- Distinguish between a cheap imitation and the real thing.
What It Means
Imagine someone hands you an old, inflated animal bladder. They tell you it is a glowing, expensive lantern. You would have to be pretty gullible to believe them, right? That is exactly what this idiom is about. It means you are sharp enough to see the truth. You refuse to be deceived by appearances. You are calling out a lie or a false promise. It is about having a clear head and good judgment.
How To Use It
You usually use it with the verb prendre. You can say Il ne faut pas prendre des vessies pour des lanternes. This translates to 'one shouldn't mistake bladders for lanterns.' You can also use it to describe yourself. Say Je ne prends pas des vessies pour des lanternes to show you are savvy. It is a great way to shut down a shady salesperson. Use it when someone tries to overpromise results at work. It shows you know the difference between reality and fantasy.
When To Use It
Use it when you feel someone is trying to 'gaslight' you. It works perfectly when a friend makes a ridiculous excuse for being late. You can use it in a meeting if a project sounds too good to be true. It is common in political discussions too. If a politician makes a wild promise, voters might use this phrase. Use it whenever you want to say, 'I see right through you.'
When NOT To Use It
Avoid this in very formal, high-stakes diplomatic settings. It is a bit too colorful for a CEO's keynote speech. Do not use it if you are actually talking about lighting or anatomy. That would be very confusing! It is also too harsh for a small, innocent mistake. If your child thinks a rock is a potato, this is too aggressive. Save it for intentional deception or extreme naivety.
Cultural Background
This expression dates back to the 13th century. Back then, lanterns were often made of translucent parchment or even bladders. Both are round and can glow when a candle is inside. However, a bladder is cheap and temporary. A real lantern is a crafted tool. The phrase became popular because it highlights the gap between value and junk. It captures the dry, skeptical wit that French culture often celebrates.
Common Variations
You might hear Il essaie de me faire prendre des vessies pour des lanternes. This means 'He is trying to make me believe his lies.' Sometimes people just use the 'vessies' and 'lanternes' keywords to imply the whole phrase. You can also say On n'est pas des pigeons, which is a more modern, slangy way to say you aren't a sucker. But the bladder-lantern version remains a classic favorite.
Notas de uso
This idiom is neutral to slightly informal. It is common in journalism to critique a situation, but in personal life, it can sound a bit sharp as it calls out someone's lack of judgment.
Use the Negative
You will sound much more natural and confident if you use this in the negative ('Je ne prends pas...') to show you are sharp.
Don't over-explain
The idiom is powerful because it's visual. You don't need to explain that you know it's a lie; the phrase does that for you.
The 'Esprit Critique'
Using this phrase shows you understand the French value of skepticism. It's a great way to bond with French colleagues over a shared dislike of 'corporate speak'.
Exemplos
6Ce prix est trop bas pour être vrai, ne prenez pas des vessies pour des lanternes.
This price is too low to be true, don't be fooled by appearances.
Used here to warn someone about a potential scam.
Il dit qu'il a oublié son portefeuille ? Ne prends pas des vessies pour des lanternes !
He says he forgot his wallet? Don't fall for his nonsense!
A casual way to tell a friend to be more skeptical.
Les politiciens nous font souvent prendre des vessies pour des lanternes.
Politicians often try to pull the wool over our eyes.
A very common context for this idiom in France.
Tu penses que ce café gratuit est du luxe ? Ne prends pas des vessies pour des lanternes !
You think this free coffee is luxury? Don't mistake a bladder for a lantern!
Using the literal imagery to joke about poor quality.
Arrête de mentir, je ne prends plus des vessies pour des lanternes avec toi.
Stop lying, I'm not falling for your tricks anymore.
Shows a loss of patience and a demand for honesty.
Dans ce milieu, il ne faut pas prendre des vessies pour des lanternes.
In this industry, you shouldn't take everything at face value.
Mentoring advice about being savvy.
Teste-se
Complete the sentence with the correct words.
Il essaie de nous tromper, mais nous ne prenons pas des _______ pour des _______.
The fixed idiom uses 'vessies' (bladders) and 'lanternes' (lanterns).
Which sentence is the most natural use of the idiom?
A friend tells you they found a diamond ring for 5 euros at a garage sale.
The plural 'des' is the standard form for this idiom.
Match the situation to the response.
Situation: A politician promises that taxes will disappear tomorrow.
This idiom is perfect for calling out unrealistic political promises.
Complete the dialogue.
A: 'Ce sac à 20€ est un vrai Louis Vuitton !' B: 'Arrête, ne me fais pas _______.'
While 'mener en bateau' also works, 'prendre des vessies pour des lanternes' specifically addresses the fake quality of the bag.
🎉 Pontuação: /4
Recursos visuais
Reality vs. Appearance
Banco de exercicios
4 exerciciosIl essaie de nous tromper, mais nous ne prenons pas des _______ pour des _______.
The fixed idiom uses 'vessies' (bladders) and 'lanternes' (lanterns).
A friend tells you they found a diamond ring for 5 euros at a garage sale.
The plural 'des' is the standard form for this idiom.
Situation: A politician promises that taxes will disappear tomorrow.
This idiom is perfect for calling out unrealistic political promises.
A: 'Ce sac à 20€ est un vrai Louis Vuitton !' B: 'Arrête, ne me fais pas _______.'
While 'mener en bateau' also works, 'prendre des vessies pour des lanternes' specifically addresses the fake quality of the bag.
🎉 Pontuação: /4
Perguntas frequentes
10 perguntasNot necessarily, but it is firm. It's like saying 'Don't try to play me.' Use it when you want to set a boundary.
Only if you are talking about a competitor's false claims or a general market trend. Don't use it against the interviewer!
It's an anatomical bladder. In this context, it refers to the dried, inflated bladders of animals like pigs.
Before electricity, lanterns were essential and valuable. Mistaking a piece of animal waste for a valuable light source was the ultimate sign of stupidity.
Yes, though less frequently than 'se faire carotte'. However, every French person knows it, and it appears constantly in the news.
No, that would sound like a 'malapropism.' The word 'lanternes' is fixed.
Not really, but you can just say 'C'est des vessies pour des lanternes' to describe a situation.
No, 'taking bladders for lanterns' is always a mistake or a deception.
It sounds like 'veh-SEE'. The 's' is not voiced like a 'z'.
The closest is 'to be sold a bill of goods' or 'to take someone for a ride.'
Frases relacionadas
Se faire mener en bateau
similarTo be led on a boat (to be lied to)
Vendre du rêve
similarTo sell a dream
Être dupe
synonymTo be a fool/to be fooled
Appeler un chat un chat
contrastTo call a spade a spade
