Gack

The noise that animate objects make when you sharply grab their neck. Most commonly found in birds and humans.

Father: Go ahead and grab it son.
Son: Ok.
Little Boy: gaaacck
Son: Haha! This is fun.
Little Boy: *gasp* aack gaaah!

by Psionics November 17, 2004

gacking

When your cat gets a random huge energy burst and runs around the house jumping on stuff and knocking things over like a little shit head.

I didn't get much sleep cause my cat was gacking all night.

by Friendlytoad May 19, 2016

gacked to the gills

Obscenely high on any substance.

My boy Tommy is always gacked to the gills on some substance or another. That fool's crazy!

by Quailsareneat December 28, 2011

Gacked out

Gone Wacked

A person who is high on drugs and don't even know what they are doing or who they are. Totally gone, wacked out. They are gacked out.

by Mthuckleberry April 5, 2019

Nut Gack

When a man puts his penis and testicles inside a homo sapiens mouth then he ejaculates in the man/womens mouth, then the person with the jizz in there mouth spits it into the persons mouth who ejaculated.

I would love to nut gack you and your mother.

by Nut Gacker 300o April 27, 2018

gack blowing

The practise of filling a drinking straw with Cocaine, inserting one end into a willing anus and then blowing the cocaine into the Ass.

Not caught on too much this, however a longer high and better use of the Coke can be had up the arse, then nasally, apparently.......

After both Nostrils where full of Blow, Britney Spears was reaching for the straw after learning about Gack Blowing

by Capt. Wow March 17, 2005

Todd Gack

A person using false excuses notably spurious bets knowing he'll lose in order to extract (win) dates from attractive women; character from NBC sitcom Seinfeld that placed a small bet knowing he'll lose.

He's the Todd Gack on dating.

by zksi December 12, 2013