The act of drinking yourself into oblivion and hunting for and sleeping with a Gnargoyle. This self-destructive behavior is usually initiated as a bet and is almost always only accomplished after the phrase "You've got no balls!" is said to the individual attempting this act.
Guy 1: "I bet you won't jump on that Gnarg, Guy2!"
Guy 2: "Fuck no dude!"
Guy 3: "Guy2's got no balls!!"
Guy 2: "Fuck you guys I'm going in for the kill"
Guy 4: "That was really easy to get Guy 2 to go Gnargoyling."