2
1. adjective; appalling in nature, unconventional.

2. verb; to strike one with the hand or fist.

3. verb; to assassinate.
1. yo, that's whack.

2. if your mother heard that she'd whack you upside the head.

3. you want we should whack a dog?
by bud newman. February 28, 2003
Get the mug
Get a whack mug for your fish Riley.
4
1. Street slang, meaning "bad".
2. To assassinate another "mo-fo".
3. Nickelwhack
1. "Man, that's whack!"
2. Tony the legitimate Sicilian businessman got whacked.
3. Hairy Canadian band.
by Schubert November 26, 2003
Get the mug
Get a Whack mug for your girlfriend Helena.
5
an event, action, or thing which makes no sense or is contrary to a logical course of action; something entirely disagreable or undesirable; A non-sequitor;
That's whack!
by Mirak Meffit August 21, 2003
Get the mug
Get a whack mug for your mate Trump.
7
1. adj; something in bad taste or is otherwise unappealing.

2. verb; to murder someone.

3. verb; to masturbate.
1. Yo Freddy, turn off the country music. That shit is whack.

2. Freddy, turn off that fuckin' country music before I go and whack ya.

3. Freddy, I said turn off the country music, I didn't say pull your johnson out and start whackin' it. The fuck?
by Eapert McDangles June 29, 2006
Get the mug
Get a whack mug for your guy Bob.