1. A disgusting act of revenge involving Anal Intercourse, where 50% of a stool is deliberately snapped off in the Anal Cavity for an unsuspecting victim to hit: with their wiener.
This can be applied to both to Hetero-Sexual and Homosexual intercourse.
Victim: Man, I went to wreck my girlfriend's BH over the weekend, but apparently she saw me making out with another chick, so she decided to snap a fifty!
Friend: Oh, man! That's fucking disgusting!