In 15 Seconds
- Expresses surprise or disbelief.
- Use when something seems unbelievable or a joke.
- Best for casual chats with friends.
- Avoid in very formal settings.
Meaning
This is your go-to phrase when something sounds too wild, surprising, or unbelievable to be true. It’s like a playful challenge to the speaker, suggesting they might be pulling your leg or making up a story. It carries a vibe of playful shock and genuine astonishment.
Key Examples
3 of 10Texting a friend
My brother just proposed to his girlfriend after only two weeks!
You're kidding!
At a café with a friend
He said he ran into a movie star at the grocery store? You're kidding!
You're kidding!
Reacting to surprising news
They're actually closing that park? You're kidding!
You're kidding!
Cultural Background
Americans often use 'You're kidding!' with very high energy. It's common to see wide eyes and a loud voice. It's a way of being 'supportive' of the speaker's story. While 'You're kidding' is used, 'You're joking' or 'You're 'aving a laugh' (slang) are very popular. The delivery is often more skeptical or dry. Australians might use 'You're kidding' but often add 'mate' or use the more colorful 'No way, get out!' with a rising 'Aussie' intonation. In international business settings, 'You're kidding' is becoming a standard way to show engagement in casual 'water cooler' talk, regardless of the speakers' native languages.
Watch the Pitch
A high, rising pitch shows you are happy/excited. A low, flat pitch shows you are annoyed or skeptical.
Avoid in Tragedy
Never use this if someone tells you sad news like a death or a serious illness.
In 15 Seconds
- Expresses surprise or disbelief.
- Use when something seems unbelievable or a joke.
- Best for casual chats with friends.
- Avoid in very formal settings.
What It Means
This phrase is all about surprise! You say You're kidding! when something you hear is so unexpected, it feels like a joke. It's a way to express shock or doubt in a friendly way. Think of it as saying, 'No way!' or 'You can't be serious!' It’s a common reaction to surprising news, funny stories, or unbelievable claims. It’s like your brain is doing a double-take.
How To Use It
Use this when someone tells you something that blows your mind. Did your friend win the lottery? You're kidding! Did your boss announce free pizza every Friday? You're kidding! It’s super versatile. You can use it in texts, emails, or face-to-face chats. Just remember the tone is key. A surprised gasp helps sell it.
Formality & Register
This is generally an informal phrase. It’s perfect for chatting with friends, family, or close colleagues. Think casual conversations over coffee or quick texts. You wouldn't typically use it in a super formal setting, like a board meeting or a legal deposition. It might sound a bit too casual there. Imagine saying it to your CEO – might get a chuckle, or a raised eyebrow!
Real-Life Examples
- Your friend texts: 'I just saw a celebrity at the mall!' You reply:
You're kidding! - Your colleague says: 'The coffee machine is broken... again.' You respond:
You're kidding! - Your sibling announces: 'I'm moving to Hawaii!' You exclaim:
You're kidding! - Reading a news headline: 'Cat elected mayor of small town.' You mutter:
You're kidding! - Your roommate says: 'I finished all the ice cream.' You gasp:
You're kidding!
When To Use It
Use You're kidding! when you genuinely feel surprised or can't quite believe what you're hearing. It's great for reacting to:
- Shocking news (good or bad)
- Funny or absurd stories
- Unexpected achievements
- Seemingly impossible events
- A sudden change of plans
It's like a verbal exclamation point for your astonishment. It adds a human touch to your reactions.
When NOT To Use It
Avoid You're kidding! in very formal situations. Think job interviews, serious business proposals, or when speaking to someone in a position of high authority you don't know well. It can also sound insincere if you don't actually seem surprised. If someone tells you their dog died, saying You're kidding! might sound insensitive. Always read the room, or the vibe, first. It's not for expressing sympathy.
Common Mistakes
- ✗
You are kidding me!→ ✓You're kidding!(The extra 'me' can sometimes sound demanding or overly dramatic, though it's also common in very casual speech. Sticking to the shorter version is safer and more universally understood as pure surprise.) - ✗
Are you kidding?→ ✓You're kidding!(WhileAre you kidding?is also used,You're kidding!is a direct statement of disbelief, often more impactful.Are you kidding?can sometimes sound like a question asking for confirmation of a joke.) - ✗
I don't believe you.→ ✓You're kidding!(This is too blunt and potentially confrontational.You're kidding!is softer and friendlier.)
Common Variations
No way!: Super common, very informal. Often used in the same situations.Get outta here!: Another very informal expression of disbelief, common in American English.You don't say!: Can be sincere surprise, but also often used sarcastically. Context is everything!Seriously?: A direct question showing surprise or disbelief.Shut up!: (Very informal, only with close friends!) Used when something is so surprising or amazing it's hard to believe. Be careful with this one!
Real Conversations
Speaker 1: I just booked a trip to Japan for next week!
Speaker 2: You're kidding! That's amazing! How did you manage that?
Speaker 1: My computer crashed and I lost the whole project.
Speaker 2: Oh no! You're kidding! That's terrible.
Speaker 1: Guess who got the lead role in the school play?
Speaker 2: Don't tell me... was it you?
Speaker 1: Yep!
Speaker 2: You're kidding! Congratulations!
Quick FAQ
- Is it always friendly? Mostly, yes! It's usually a lighthearted way to express surprise.
- Can it be sarcastic? Yes, tone of voice is crucial. Said with a smirk, it can mean 'I totally believe you, but it's funny.'
- What if I don't believe them at all? It's still a polite way to show you're surprised. It doesn't mean you *fully* believe them yet.
Usage Notes
This phrase is firmly in the informal category, perfect for casual conversation, texting, and social media. While it can be used in internal professional communications if the culture is relaxed, avoid it in formal reports, client emails, or speeches. The key is conveying genuine, lighthearted surprise; misusing it in a serious or sympathetic context can sound insensitive.
Watch the Pitch
A high, rising pitch shows you are happy/excited. A low, flat pitch shows you are annoyed or skeptical.
Avoid in Tragedy
Never use this if someone tells you sad news like a death or a serious illness.
The 'Right' Addition
Add ', right?' at the end ('You're kidding, right?') if you are 50/50 on whether they are actually joking.
British Alternative
If you are in London, try 'You're joking!' to sound more like a local.
Examples
10My brother just proposed to his girlfriend after only two weeks!
You're kidding!
Expresses shock at the speed of the relationship milestone.
He said he ran into a movie star at the grocery store? You're kidding!
You're kidding!
Shows disbelief about the unlikely celebrity encounter.
They're actually closing that park? You're kidding!
You're kidding!
Expresses disbelief and disappointment about a local development.
The hiring manager said, 'We're offering you the position.' I thought, 'You're kidding!' but managed to say 'Thank you.'
You're kidding!
Used internally to express shock at an unexpected positive outcome.
Just found out my tiny apartment is rent-controlled?! You're kidding! Best day ever. #blessed #rentcontrol #nyc #dreamscometrue
You're kidding!
Expresses extreme surprise and happiness about a fortunate turn of events.
OMG, Sarah just won the lottery! You're kidding!
You're kidding!
A quick, informal reaction to unbelievable good news shared among friends.
My cat learned to code overnight. You're kidding! I think he's smarter than me.
You're kidding!
Used humorously to emphasize how absurd or impressive something sounds.
✗ You are kidding me! → ✓ You're kidding!
You're kidding!
The phrase 'You are kidding me!' can sometimes sound demanding or accusatory, whereas 'You're kidding!' is a more neutral expression of surprise.
✗ You're kidding! → ✓ I'm so sorry to hear that.
I'm so sorry to hear that.
This is used when someone shares bad news, not surprising news. Using 'You're kidding!' here would sound insensitive.
Subject: Project Update Hi team, Just wanted to share that the client approved the revised proposal. You're kidding! I thought we'd have to rework it for another week.
You're kidding!
Expresses genuine surprise and relief about the positive outcome, even in a professional context.
Test Yourself
Choose the best response to show you are surprised by good news.
Speaker A: 'I just found out we won the free trip to Hawaii!' Speaker B: '________'
'You're kidding!' is the correct idiomatic expression for surprise.
Complete the dialogue with the most natural phrase.
A: 'The store is closed for the next three weeks.' B: 'You're ________! I need to buy a gift today!'
While 'joking' works, 'kidding' is the most common choice in this context of frustrated disbelief.
Match the tone of 'You're kidding' to the situation.
Situation: Your boss tells you that you have to work on Saturday morning.
In this context, 'You're kidding' expresses frustration that a bad situation is actually happening.
Fill in the missing word to make the phrase more personal and frustrated.
You're kidding ____! I just finished that report and the computer crashed.
'You're kidding me' is the standard way to show the news affects you personally.
🎉 Score: /4
Visual Learning Aids
The Three Faces of 'You're Kidding!'
Happy Surprise
- • Lottery win
- • Surprise party
- • New baby
Disbelief
- • Strange news
- • Unlikely facts
- • Gossip
Annoyance
- • Extra work
- • Bad weather
- • Broken phone
Practice Bank
4 exercisesSpeaker A: 'I just found out we won the free trip to Hawaii!' Speaker B: '________'
'You're kidding!' is the correct idiomatic expression for surprise.
A: 'The store is closed for the next three weeks.' B: 'You're ________! I need to buy a gift today!'
While 'joking' works, 'kidding' is the most common choice in this context of frustrated disbelief.
Situation: Your boss tells you that you have to work on Saturday morning.
In this context, 'You're kidding' expresses frustration that a bad situation is actually happening.
You're kidding ____! I just finished that report and the computer crashed.
'You're kidding me' is the standard way to show the news affects you personally.
🎉 Score: /4
Video Tutorials
Find video tutorials on YouTube for this phrase.
Frequently Asked Questions
10 questionsNo, it's usually friendly and shows you are interested. However, it can be rude if used sarcastically to dismiss someone's serious point.
No, that is grammatically incorrect. You must say 'You're kidding me' or 'You are kidding me'.
They are almost identical. 'Kidding' is slightly more common in the US, while 'joking' is slightly more common in the UK.
Only if you have a very friendly, casual relationship. In a formal meeting, it's better to say 'That's very surprising'.
Both are fine! 'You're kidding!' is a statement of shock. 'Are you kidding?' is a question that asks for confirmation.
It means 'I'm not joking' or 'That is obviously true'. It's often used sarcastically when someone says something obvious.
Yes! It's a great way to play along with a child's imagination.
Yes, 'No way!' or 'Get out!' are very common slang alternatives.
It comes from the idea of treating someone like a child (a kid) by teasing them.
Only in a very casual email to a friend. Avoid it in professional correspondence.
Related Phrases
No kidding!
similarI am telling the truth / That is true.
Are you kidding me?
builds onStronger disbelief or annoyance.
You're joking!
synonymI don't believe you.
Pulling my leg
idiomTo tease or lie playfully.
No way!
synonymThat is impossible.
Get out!
slangI don't believe you!
