When your girl is on her period so you can't have sex with penetration, but she wants your cum anyways , you masturbate on the string hanging out of her pussy and smear it around.
Girl: I want a Mexican cheeseburger tonight, babe.
When a man cums inside an asshole and that person in turn poops it back out on them. Preferably on the face.
Me: dude I came in her butt last night and she pooped it back on my face!!!
Friend: dude wtf. Gross!!! You let her give you a Mexican dumpster???
When a nasty bastard takes a dump in the pool.
Hey man, did you hear about Steve? He did a Mexican Boat Launch at the community centre last night!
A metal screen door that is attached to your front door.
Make sure you lock the Mexican babysitter. We don't want the kids to escape while we are out.
The act of ripping a woman’s pubes out with your teeth.
“Hey man what were you up to last Wednesday?”
“Not much, just giving your ex a Mexican Lawmower“
The act of a female holding a man’s penis and the man moves the female’s arm to masturbate.
Bro, my girl was feeling lazy so we compromised with a Mexican rudder.