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Quick Answer
Echar aguas means to keep watch in Mexican Spanish - being the person who warns you if somebody is coming. It comes from aguas, the shout that means watch out. Échame aguas is how you ask for it, and it is far more often innocent than not.
- Echar aguas means to keep watch - to be the lookout while somebody else does something.
- It comes from aguas, the shouted warning that means watch out.
- Échame aguas is how you ask, and it covers everything from real sneaking to changing your shirt in a car.
What it means
One person does something, another watches the door. That is the whole arrangement, and it is as likely to be about eating at your desk as about anything you could get in trouble for.
The word carries a small conspiracy without carrying any real weight. Two people are briefly in something together, and that is most of the pleasure of using it.
Literal meaning
Aguas is the shout - one word, meaning watch out, and it is used on its own constantly. Echar aguas turns the shout into an ongoing job: watching so that you can produce it at the right moment.
The old practice is real. Agua va survives as a fixed Spanish locution meaning exactly what it looks like - the warning you shouted before emptying a chamber pot into the street - and it is attested in Golden Age sources, with fines for skipping it.
What nobody has demonstrated is the last step: that Mexico's ¡aguas! descends directly from that shout rather than from the same general reflex arriving independently. So the history is solid and the family tree is the guess, which is a more useful thing to know than either half on its own.
The forms of echar aguas you'll hear
- échame aguaskeep an eye out for meThe request, and the commonest form by a distance. What you are watching for usually goes unsaid.
- te echo aguasI'll watch for youThe offer. Often said before anybody has asked, which is the friendly move.
- me echó aguashe kept watch for meAfter the fact, and usually with some gratitude in it.
- ¿me echas aguas?can you keep watch?The question form, and what you will actually say out loud. Tantito on the end softens it further.
- échame aguas con...keep an eye out for...Names what you are worried about. Échame aguas con el jefe, échame aguas con la puerta.
- andar echando aguasto be on lookout dutyThe state rather than the act. Andaba echando aguas mientras entrábamos.
How Mexicans use it
The request is the commonest form. Échame aguas, then whatever you are about to do, in that order - and the person asked does not usually need to be told what they are watching for.
School is where most Mexicans first use it, and it never entirely loses that flavor. Even between adults there is something of a hallway and a teacher about it.
At work it is almost always mild: somebody eating at their desk, somebody stepping out for twenty minutes, somebody finishing a personal errand on a work laptop. Échame aguas covers all of it.
It also gets used with no wrongdoing at all - changing clothes behind a car door, carrying something awkward through a doorway, checking whether a room is empty. The watching is the point rather than the misbehavior.
Examples
- Échame aguas, ahorita vengo.Keep an eye out for me, I'll be right back.
- Tú échame aguas y yo entro rápido.You watch the door and I'll be quick.
- Me estuvo echando aguas toda la tarde.He was keeping watch for me all afternoon.
- Nadie me echó aguas y me cacharon.Nobody warned me and I got caught.
How echar aguas looks in a group chat
- voy a salir 20 min, ¿me echas aguas?i'm stepping out for 20 min, can you keep an eye out?
- va, si preguntan digo que fuiste a imprimirsure, if anyone asks i'll say you went to print something
- eres un santo 🙏you're a saint
- me cachó el jefe comiendo en el escritoriothe boss caught me eating at my desk
- jajaja nadie te echó aguas?hahaha nobody warned you?
- nadie. traidores todosnobody. traitors, all of them
Mini dialogue
Common mistake
Dropping the s. Echar agua is pouring water. Echar aguas is standing watch, and the plural is doing all the work - the same s that makes the shout a warning rather than a noun.
Assuming it implies something illegal. It usually does not. The register is closer to keeping an eye out than to casing a building, and using it that way in front of Mexicans will read as melodramatic.
Don't sound gringo
aguas on its own is the shout. echar aguas is the job - being the person who watches while somebody else does the thing.
Échame aguas is what you say to a friend before you do something you would rather not be caught at, and it covers everything from genuinely sneaking around to changing your shirt in a car.
It is not a criminal word. Half the time it is somebody eating at their desk who wants a warning if the manager appears.
Where you'll hear it
- A colonial street, a bucket, an upstairs window, and a shout that outlived the practice
- Two kids at a school gate, one facing the hallway while the other does something to a locker
- An office at four, somebody eating at their desk and somebody else watching the hallway
- A friend holding a jacket up beside a car door with the seriousness of a security detail
FAQ
What does echar aguas mean?
To keep watch - to be the person who warns you if somebody is coming. It comes from aguas, the shouted warning that means watch out.
How do you ask someone to keep watch in Mexican Spanish?
Échame aguas, then say what you are about to do. The person asked rarely needs it explained further.
Does echar aguas mean something illegal?
Usually not. It is far more often about eating at your desk or changing your shirt behind a car door than about anything you could get arrested for.
Where does aguas come from?
The practice is real - agua va survives as a fixed Spanish locution, the warning shouted before emptying a chamber pot into the street. What is unproven is only that Mexico's ¡aguas! descends directly from that shout rather than arriving independently from the same reflex.
What is the difference between echar aguas and echar agua?
The s. Echar agua is pouring water. Echar aguas is standing watch, and the plural is what carries the warning sense.
Is aguas useful on its own?
Extremely. It is the one-word shout for watch out, and it is among the most useful things you can learn before arriving in Mexico.
What is the difference between echar aguas and hacer el paro?
Hacer el paro is any favor. Echar aguas is one specific one - standing watch. Watching is a paro; most paros are not watching.
echar aguas vs aguas, echar agua and hacer el paro
echar aguasvsaguas
Aguas is the warning itself - shouted, one word, meaning watch out. Echar aguas is the ongoing job of watching so that you can shout it. The shout comes first; you will need it before you need the job.echar aguasvsechar agua
Singular, and it stays literal - pouring water, watering the plants. The plural aguas is what carries the warning sense, and the s is the whole difference.Page coming soonechar aguasvshacer el paro
Hacer el paro is any favor. Echar aguas is one specific favor: standing watch. Somebody who echa aguas is doing you a paro, but most paros involve no watching at all.echar aguasvsponte trucha
Ponte trucha is be alert, look sharp - about your own state. Ponte al tiro does the same job and is the one a chilango reaches for. Echar aguas is watching on somebody else's behalf, which is different.Page coming soonechar aguasvshalcón
The word that actually is criminal, and the reason echar aguas is not. Un halcón is a lookout posted by a cartel, and halconear is the verb. Nobody uses echar aguas for that, which is exactly why it stays innocent.Page coming soon
Related words
Test yourself
Tap an answer.
Your friend says 'échame aguas.' What are they asking?
Where does the shout aguas supposedly come from?
The one thing
echar aguas is being the lookout, from aguas - watch out. aguas con anything is the pattern you'll use most. usually a desk lunch rather than anything criminal - that word is halcón.
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