(adjective)Verybad: walked out of a really wack movie.
(noun) friend; pal: used chiefly as a term of address
Use "wack" in a sentence
"Now this nut wack is out there telling her few supporters to not use "her" tactics when trying to have a health care dicussion."
"People who believe that "McCain wack-America need change, Obama be dat" is a moving and deep political slogan."
"All ya'll is fuckin wack he was one of the greatest rappers alive ya'll better respect him cuz without him hip-hop wouldn't even have exsisted so step brandon guerilla black shoulda played biggie and the cast does look pretty weak"