In the marching band circut, a vulgar but effective means to get a judge's attention. Just holler it and he'll probably look your way and go, "hmm, maybe I'll watch him." Either that, or do it when someone's about to fall to divert his attention.
(band playing....big attack) DA DA DA DA!
"Deez NUTS!"
"WTF?!"
another term for my ball sack, testicles. commonly used on the internet to taunt people, for example, after winning a hand on PokerStars.com. also good for getting a girl in the mood.