mexican dumpster
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???
Friend: dude wtf. Gross!!! You let her give you a Mexican dumpster???