“Aguas” is widespread Mexican slang for “watch out,” and this clip leans fully into that street-warning humor with the added “wey” for comic effect. The exact original recording is not documented, but the phrasing circulates as a shareable voice meme in Spanish-language meme pages and chat threads, often captioned simply as a truck warning. Its three-second length makes it ideal for reaction edits, and it survives because the delivery sounds like a real friend yelling, not a polished effect.