
Spice level
close friends only. read the room.
Quick Answer
- ¿Qué pedo? means 'what's up,' 'what's wrong,' or 'what's going on' in Mexican Spanish.
- It's vulgar — pedo literally means fart — and should only be used with close friends in casual settings.
- It can be a greeting or a confrontation depending on tone; read the context before replying.
What it means
¿Qué pedo? is a versatile question that covers everything from a casual greeting to a serious 'what the hell is going on here.' The meaning depends on tone, body language, and what happened five minutes before.
Between friends it's usually just hello — a quick ¿qué pedo? as someone walks in the door or pops up on WhatsApp. But the same phrase with a flat tone and eye contact can mean something is wrong and we need to talk.
Literal meaning
Literally: 'what fart?' Pedo means fart in Mexican Spanish, but over decades of street use it evolved to mean problem, drama, or messy situation. ¿Qué pedo? became the shorthand for asking what mess is happening here — and then softened into a general greeting among friends.
The shift from fart → problem → greeting mirrors how taboo words often travel in slang: they lose their shock, gain utility, and eventually just mean the thing everyone needs a word for.
How Mexicans use it
In everyday CDMX life, ¿qué pedo? is a greeting between close friends — arriving at a house, walking into a room, starting a phone call. It's low-effort and friendly when the vibe is right.
On WhatsApp and in group chats, it often lands as a one-word check-in: someone drops '¿qué pedo?' and the group knows it means 'tell me what's happening.' It's also used to call someone out: '¿qué pedo contigo?' — what's your deal, basically.
In Monterrey and Mexican-American communities you'll hear it too, though ¿qué onda? tends to be more universal. ¿Qué pedo? feels distinctly CDMX to many Mexicans.
Tone and safety
¿Qué pedo? is vulgar. It doesn't feel harsh between close friends — it just sounds real — but in any formal or mixed setting it signals that you're either not aware of the social rules or you don't care about them. Either way, you get noticed.
Safe substitute: ¿qué onda? carries the same casual 'what's up' energy without the vulgarity. Use ¿qué onda? anywhere you'd be unsure about ¿qué pedo? — the office, meeting someone new, talking to anyone over 50.
Common mistake
The most common learner mistake is treating ¿qué pedo? like a direct translation of 'what's up' and using it broadly. It's not ¿qué onda? — it's stronger, and the audience matters.
Another mistake is missing tone. ¿Qué pedo, cómo estás? is friendly. ¿Qué pedo contigo? is often a challenge. The phrase is the same; what's different is the direction it's aimed.
Don't sound gringo
Don't say ¿qué pedo? to a coworker, your Airbnb host, or anyone you just met. It works exactly like dropping an f-bomb in English: totally fine between close friends, wildly out of place everywhere else.
Examples
- ¿Qué pedo? ¿Cómo estuvo el fin?What's up? How was the weekend?
- No güey, ¿qué pedo contigo? Te estuve esperando una hora.Dude, what's your deal? I waited for you an hour.
- Llégale, ya estamos todos — ¿qué pedo?Get here, we're all waiting — what's going on?
Where you'll hear it
- arriving at a friend's apartment after a long day and someone opens the door with '¿qué pedo, cómo te fue?'
- group chat at 11pm — someone drops a meme and the first reply is just '¿qué pedo?' with zero context
- two friends running into each other at a party — one grabs the other's arm and says '¡güey! ¿qué pedo contigo? tienes rato que no te veo'
- your friend texts ¿qué pedo? and you realize by the tone they're not just saying hi — something is actually wrong
- accidentally saying it to your novia's dad when he answers the door
Mini dialogue
FAQ
What does ¿qué pedo? mean?
¿Qué pedo? means 'what's up,' 'what's wrong,' or 'what's going on' in Mexican Spanish. It's vulgar — pedo literally means fart — and is used only in casual settings with close friends.
Is ¿qué pedo? rude?
Yes, it's considered vulgar. Between close friends it sounds normal and even warm. In formal settings or with people you don't know well, it can come across as rude or too casual.
What's the difference between ¿qué pedo? and ¿qué onda?
¿Qué onda? is the safer, more neutral version — still casual, but widely acceptable in more contexts. ¿Qué pedo? has more edge and stays firmly in close-friend territory.
Can ¿qué pedo? be a confrontation?
Yes. '¿Qué pedo contigo?' — 'what's your deal?' — is a confrontational use. Context and tone tell you which meaning is in play: a greeting, a check-in, or a challenge.
How do you use ¿qué pedo? in a text message?
Mexicans use it the same way in texts as in person — a quick 'q pedo' or '¿qué pedo?' to check in on a friend. It's casual, low-effort, and expected to prompt a real answer.
What does pedo mean on its own?
Pedo has several meanings in Mexican Spanish: fart, problem, drama, or being drunk. ¿Qué pedo? draws on the 'problem/drama' meaning — 'what's the situation here?'
Don't confuse with
- ¿qué onda?¿Qué onda? is the safe version — still casual, but nobody flinches. ¿Qué pedo? is the same vibe with the volume turned up. If in doubt, use ¿qué onda?
- pedoPedo on its own means problem, drama, or drunk. ¿Qué pedo? is the question form — but both words share the same energy: blunt, unfiltered CDMX.
- ¿qué transa?¿Qué transa? is another 'what's up' variant, slightly softer than ¿qué pedo? and more old-school CDMX. Both are friend-only territory.
Related words
Test yourself
tap an answer.
Your friend walks into the room looking stressed. You want to ask what's going on — using the most casual, direct CDMX way. What do you say?
Your coworker walks by your desk. You want to say hi. Do you say ¿qué pedo?
A friend texts you ¿qué pedo? out of nowhere. What's the most likely meaning?
The one thing
¿qué pedo? is the raw, no-filter 'what's up' — vulgar by design, completely normal among friends, and completely wrong anywhere else.

