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1.
pronounced "qwuack" like a duck.

cwac stands for "cowards with a cause". terrorists are considered cwacs. their cause is to change the way America handles foreign affairs. but they're big time cowards so instead of meeting with politicians face to face they strap dynamite to their little putt-putt cars and blow things up.
dude 1: that osama bin laden dude is a total cwac.

dude 2: i know, he's probably the biggest cwac of them all.

dude 1: why do you say that?

dude 2: because he doesn't have the balls to strap dynamite on his own ass, instead he sends other cwacs to do it.

dude 1: wow... dude, where's my car?
by dooode_wheres_my_car June 21, 2006
 
2.
Non-caucasian, but not a true-blood homie
She be phat cwac!
by PKHamilton December 03, 2003