Latino Meat Shank 

When a Latino man straps a razor blade to then end of his penis and then proceeds to slap you across the face with it until both sides of your mouth are cut to look like the Joker from Batman.

According to HOMOPHOBIC BATMAN on youtube.

John: What happened to your face!

Steve: Some guy strapped me down and gave me a Latino Meat Shank.

Latino Meat Shank by FPSjeremy August 11, 2010