To deficate; to take a shit; to take a dump; go number two etc..
Guy 1: You look a little sick are you okay?
Guy 2: No, it must have been something I ate. I got to go kill a brown snake.
When one is having sex with two women at the same time and you alternate between one girl's vagina and the other girl's anus.
Bend over ladies it's time for the bamboo buffet!