gack

Methamphetamine (crank, speed). Describes the gag reflex triggered by the extreme burning sensation of the nasal passages when the drug is snorted, and the very bitter taste as it drains down the back of the throat.

The character 'Pooh-Bear' in the movie "The Salton Sea" had to have his nose surgically removed because he snorted too much gack.

by Anonymous July 13, 2003

gacked

adjective describing some one who is strung out on meth

oklahoma white trash vernacular

Shark was gacked, so I got the hell out.

by Orville Blick April 22, 2005

gacked

High on Cocaine.

Last night I had a few lines, and I was totally gacked.

by Theone December 30, 2003

Gacking

The act of sucking your own dick.

Person: Did you know that Marilyn Manson loves gacking?
Another person: No way!!
Person: Really? Of all the things he's into, THIS, surprises you? Wow. I'm tweeting this convo, ya twat!

by KingFobos July 14, 2016

gack

Any amount of useless or unwanted stuff (usually regarding possesions)

I've got too much damn gack in my attic. Guess I'll throw something on ebay.

by mudpup April 24, 2006

gack

1.A term used for the Drug Crystal Meth Amphetamine

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!"

by L8Nighter March 17, 2011

gacked

To steal from someone else. Used often in blogs and such.

"I totally gacked this picture from Amy's site."

by Anonymous November 8, 2003