bad,not good. sometimes used in freestyle battlin'.
"you're shit was wack!"
by brixx May 23, 2005
somebody who is white and acts black. The W stands for white , the ''ack'' stands for black.
him, have you seen tim's shoes
her Ya there Wack
by jeff222 March 19, 2014
to kill someone, in the mob
He disrespected me, so I wacked him.
by coach_max September 21, 2012
1. Something shitty, old or inferior.
2. An amazing Mindless Self Indulgence song.
1. Jim: Did you see Joe's gig last night?

Rick: Yeah man, that shit was wack!
2. My shit is wack! Oh oh oh, ho oh oh! Down to defy niggaz and my double-wide niggaz!
by BringThePineapples December 19, 2011
a very cool term. Used to describe someone when they say or perform an action that is admired by others.
dude, amanda is so wack
by awahlstedt May 26, 2011
someone who is white and acts/dresses like a black person
Hey Martha, that white boy is a total wack!
A mix between black and white...a more proper term for wigger becasue a nigger is a socially unacceptable term
by a white black person May 05, 2011
The term "Wack" is a word used to describe any "musical" "artist" who is enough of a sell out to feature on national television.
An example of a wack artist would be:

Every artist you know and listen to.
by The1PersonWhoIsSmarterThanYou January 14, 2011

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