Gack

Acronym: God-Awful Cornholed Kook

Usually referring to a person who participates in anti-social behavior. Can refer to, but is not limited to:

-Internet Trolls
-Anti-Furries
-Bloxheads (Toxic Roblox Players)
-Stans (Especially the ones obsessed with authoritarian/fascist/terroristic ideologies)
-Etc.

"That user there? I heard he's an anti-furry."
"Great, another screwball gack on the loose."

by BarrelOfRadioactiveIceCream July 18, 2024

gacked

to be fucked off acid

"oi conor"
"cunt im gacked"

by joeysmatekevin September 27, 2018

gack

a person who can’t handle his alcohol and prefers overweight women

oh no thats his 5th beer, he will probably be a gack and try plug a fatty tonight

by handlemart42 July 24, 2023

gack

A dark substance composed of melting snow, dirt, spilled beer, and a powerful mix of other excretions and spillings that stained SUNY @ Oswego students' shoes/boots after an evening imbibing at such places as Broadwell's and Buckland's (mid 80's through early 90's).

Doug: Yo, Dave, what the fuck is on your boots?

Dave: It's gack from Broadwell's last night.

by MoshKing88 March 10, 2023

Ash got Gack

Ashley aint cleanin her cooter and booty hole properly sooo, now she got sticky shit in the region in between.

Kayla: Yo Ash got gack
Person: Ew tell her not to get that on my car seats

by hayley1708 May 24, 2018

Gack

Something truly unhealthy yet shallowly rewarding.

Get some gack while you are at the shop: NikNaks, Starbars - all the major food groups.

by Old Moore's Balzac December 10, 2022

gack back

Used to describe back pain due to extensive slouching while using crystal meth and/or blow.

"Damn, my gack back is killing me."

by AnonymousTweaker August 23, 2021