¿Qué onda? is a casual Mexican Spanish way to say “What’s up?” or simply a relaxed hello.
You can also say Hola, ¿qué onda?, but keep it for informal situations and do not confuse it with tirar la onda.
The conversations below are original teaching examples, with English translations. Suggested replies are options to adapt to your relationship.
¿Qué onda?: a casual Mexican Spanish greeting
In Mexican Spanish, ¿qué onda? works as an informal greeting. In practice, it can mean “what’s up?” but it may also function more like a casual “hey” or “how’s it going?” than a real request for detailed news.
Hola, ¿qué onda? is a slightly fuller version that still sounds casual. The key point is register: this expression suits friends, classmates, siblings, or other relaxed conversations. It is not a good choice for formal writing, professional introductions, or situations where you want distance or ceremony.
A common mistake is to over-interpret onda because the dictionary also records other expressions built from the same word. Here, the greeting ¿qué onda? is separate from tirar la onda. If someone texts you ¿Qué onda?, that alone does not mean flirting or romantic interest.
When replying, you do not need to mirror the phrase exactly. A natural response is often just a short update or return greeting, such as Todo bien, ¿y tú? or Hola, todo bien. If the message seems to open a conversation, answer the social function first, then the practical topic if there is one.
A friend starts a casual chat
Illustrative conversation
THEM¿Qué onda?
What’s up?
YOUTodo bien, ¿y tú?
All good, and you?
THEMBien, aquí nomás.
Good, just hanging out.
This exchange shows the greeting use clearly. The best response is not a literal explanation of what is “up,” but a brief social reply that keeps the conversation moving. If you answer this way, you show that you understood it as a casual hello, not as a serious question needing a long report.
You want to greet warmly
Hola, ¿qué onda? Todo bien por acá.
Hey, what’s up? All good over here.
Use this when you want to match the casual tone and add a little friendliness.
You are busy
¡Hola! Todo bien, pero ando ocupado ahorita.
Hi! All good, but I’m busy right now.
This keeps the greeting friendly while setting a clear limit.
Someone opens before asking for a plan
Illustrative conversation
THEMHola, ¿qué onda? ¿Sí vas a venir?
Hey, what’s up? Are you still coming?
YOUSí, sí voy. Llego en diez minutos.
Yes, I am. I’ll get there in ten minutes.
THEMPerfecto, aquí te espero.
Perfect, I’ll wait for you here.
Here Hola, ¿qué onda? is just the opener. The important content is the follow-up question about the plan, so your reply should answer that directly. This helps you avoid treating the greeting as the main message when it is only softening the start of the conversation.
You cannot go
No voy a poder ir. Perdón por avisar tarde.
I’m not going to be able to go. Sorry for letting you know late.
Use this if you need to decline clearly instead of ignoring the practical question.
You need more time
Sí, pero me retrasé un poco. Llego como en media hora.
Yes, but I got delayed a bit. I’ll get there in about half an hour.
This answers the real issue and gives a usable update.
Do not try to make ¿qué onda? sound formal. If you need a more neutral opening, choose a plain greeting instead, such as Hola. That is especially useful with teachers, clients, official messages, or anyone you do not address casually yet.
Also avoid reading romance into the greeting by itself. The documented warning matters here: ¿qué onda? and tirar la onda are different expressions. If you want to stay safe in interpretation, treat ¿Qué onda? as a casual greeting unless the rest of the message adds clear romantic content.
For learners, the main lesson is functional: some expressions translate approximately rather than word-for-word. English “What’s up?” is a useful guide, but in real use ¿qué onda? may simply open contact.
A good habit is to read the whole message before deciding on tone or intent. If the text says only ¿Qué onda?, a short friendly reply fits. If it says Hola, ¿qué onda? ¿Dónde estás?, answer the location question. That prevents a common mistake: focusing on the slang greeting and missing the actual purpose of the message.
No. It can invite a brief update, but it often works mainly as a casual hello. Replying with a short greeting or a quick status update is usually enough.
Can I use ¿qué onda? in a formal message if I add hola?
No. Hola, ¿qué onda? is still informal. If you need a neutral or formal tone, use a plain greeting instead of trying to make this expression formal.
