A pack of gum that you have stuck up your butt and left out for greedy friends that try to steal your gum.
Casey: "Hey Cody, are you just gunna let Hank steal your gum"
Cody: "Don't worry, that's my butt gum"
Casey: "Oh Nice"
When a man ejaculates in to someone's mouth and then, before swallowing, adds Nesquik chocolate powder.
Friend 1: Why do you have a container of Nesquik in your cabinet?
Friend 2: My girlfriend wants a Nesquikie tonight and I have no reason to complain.