Acronym for "What a fuckin' douchebag!"
Most properly used when texting or posting on facebook, or perhaps verbalized as "W-A-F-D" when kids are around or in an extremely "proper" situation.
On facebook: "Hey fb fam, went to Best Buy on Black Friday and was waiting 45 seconds for some dude to pull out of a parking spot when some rich asshole pulled his Bimmer in before me. WAFD!"
"What A Fucking Dick!"
"Bob shit in my cereal. WAFD!"
"What a fucking dumbass"
"Dude i just microwaved my balls"
"A bunch of random fucks threw a rager at Bauer's, and he's so fucking stupid that he didn't do anything to stop it"