Gack

noun. - Ritalin, Concerta, Vyvance, Adderall, or any other Psycho-Stimulant ADHD Drug.
verb. - the state of mind when on any psychostimulant or adhd drug; usually one listed above

noun - Dude lets buy some Gack tonight.
verb - Dude lets get gacked out.

by ProjectDiesel December 9, 2008

gacking off

when a guy jacks off without showering for a couple of days (2 OR MORE).

BOB: today i was gacking off

by chivorey March 27, 2009

Gack Off

Term used to describe when a meth user decides that rather than party with their friends famy and neighbors all weekend, they are going to just irresponsibly spend half their rent money on some dope and go hide out alone in their home and get higher than fuck all weekend...like a speed-driven "METHodical masturbation" type of high...

Bro, I'm so tired of smoking all my dope with these jank-ass chicks around the hood all weekend just to end up not getting any, yet still outta dope by Monday morning....fuck it, time to disappear for a couple days and gack off with my bad self...

by jimjones, omnibeing April 14, 2019

Whack my Gack

A way of someone to say masturbate my penis.

Jim: Hey you, why don't you come over here and Whack my Gack!?
Tim: That is quite rude.

by Popaius November 8, 2016

geeking on some gack

A term used when one is so high that they loose all Motor skills and loose touch with reality

Man I hit this dab and let me tell you I’m geeking on some gack

by PurpleVoltage November 23, 2022

wack his gack

Defines masturbation in the third person

Frat guy:”Wow that dude can wack his gack to a picture of lightning McQueen”

by Supfamily February 18, 2018

whack your gack

whacking your gack is: to masturbate; or to give constant friction to a male genitalia.

"I like to whack your gack." -Badger

by Yeldarb123456789 March 23, 2017