me cagüen tu mai

Is originally a Puerto Rican slang for Imma shit on your mother or I’ll shit on your mother. People use this as a bad joke or as an offensive way.

-Hey did you washed the dishes like I told you.
- Omg I forgot

-“Me cagüen tu mai” I told you like an hour ago.

Dude Me cagüen tu mai that was funny af.