Mexican Machine gun 

a sexual act in which you feed your partner mexican food and while in the act of making love, you squeeze their stomach, causing them to release a machine gun like spray of fecal matter.

I got so wasted last night that i tried convince my girlfriend to do a mexican machine gun

Mexican Machine gun by Ausin Taneous July 17, 2011

Mexican Machine Gun 

Throwing a hand full of rocks at someone because you can't afford a real gun.

Boy 1: Did you hear about Jimmy getting shot by a Mexican Machine Gun?

Boy 2: Oh Lord please don't tell me its true! Is he going to die??????? What hospital is he in?

Boy 1: Nah dude! He's fine. Only one small cut on his cheek, he's gonna be fine. Luckily they weren't closer. He's now found the Lord though, said it changed his view on life.

Mexican Machine Gun by Rooster Jake August 27, 2011