wack 

1. Of low quality, not good, poor, etc.

2. Also used to mean the opposite of it's original meaning, like bad or shit is commonly used (i.e. Wow man, that's some bad moves ya got.). Upstate New York colloquial

That's new car o' yours is wack, how cool.

wack by BillG February 15, 2005

Wack 

Not great or horrible.

"Black Panther" was wack.

Wack by Poppy Harlow September 29, 2018

wack 

the spot between your back and your crack.

the wack is that hairy spot at the bottom of your back before your crack.

wack by colorian July 2, 2009

Wack 

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.

Wack by The1PersonWhoIsSmarterThanYou February 20, 2011

wack 

1.The condition of being out of synchronzation with the rest of the universe.
2. Having a twisted or perverse worldview

That BBking53 is so very wack and so is her friend Vandal.

wack by L. Nettels December 23, 2003

wack 

tha complete sh*t, a fly lil' momma,..a true rider,...

wacktackuliar, wackalicious, wack-around, wanna-wack?, once u've been wack, u never go back,.....as in,....jackee

wack by wackwack May 17, 2010

wack 

the act of stroking your genitals to an erection, then in rythmic pattern stroke genitals to orgasm.

everyone wacks it to catdog.

wack by asdf August 9, 2003