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 19, 2024

Gack

The term “gack” refers to someone who wants to have hot steamy sex.

Gack! Let’s go to your room.

by ProfessionalDictonary September 26, 2021

Gack

To show incredible amounts of love to your parner via gentle cuddling kissing and being in a happy relationship

"i am going to Gack you so much tonight". "do you want to go for a sweet Gack session on the couch?"

by Wintergray January 30, 2018

Gack

A Synonym Of Back, Can Be Used In any Situation, However, Do Not Confuse This With The Adjective Gackful, Which Can Mean "Best, Great, Good"

"Man, Its so Democratically GACK"

by Myballsitchmore December 12, 2024

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

Gack

A great and loyal friend, a super talented artist and also really funny and kind

I love gack /p

by Ziolaa November 29, 2022

Gack

A word used by a fucking idiotic British person who tried to create his own language while playing video games on YouTube.

Gavin of Achievement Hunter used the word 'gack' and was promptly called a fucking idiot.

by Uncle Steve The Crack Addict June 15, 2016