1 definition by L8Nighter
1.A term used for the Drug Crystal Meth Amphetamine
2A some what derogatory name for person under the influence of crystal meth.
2A some what derogatory name for person under the influence of crystal meth.
1. "They just smoked a fat bowl of gack."
or Thats some killer Gack!"
2. "That guy is a total effin gack." or "Quit being such a gack, your going to get us busted!" or "Never bring that gack over to my house again!"
or Thats some killer Gack!"
2. "That guy is a total effin gack." or "Quit being such a gack, your going to get us busted!" or "Never bring that gack over to my house again!"
by L8Nighter March 2, 2011