The act of masterbation while high on methamphetamine enduring up to 12 hours with the use of pornography. Derived from the words whack meaning masterbation and tweak a synonym for methamphetamine.
He ain't answering his phone because he's been twacking all night long.
by Gametophyte April 12, 2020
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My dealer was out of marijuana so I scored some twack instead.
by Richard Thrust September 27, 2019
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To have a lot of energy or to be under the influence of a type of drug such as ice, meth, or anything that really gets u going
Damn i am like so twacked right now i just drank like two rockstars. Or fuck i just smoked a phat bubble and i am like so twacked!
by Kryptonite-Haze January 7, 2011
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People from the area of British Columbia often use the word "twacked" when referring to the state of being high on the drug, cocaine, and nothing else.
Man, that 8-ball to my dome got me so fucking twacked last night.
by Tony Montanaaaaaa November 29, 2010
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The sound a bag of quarters makes when it hits someone upside the head, causing this individual to have a lazy eye.
by Schwank November 4, 2004
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In the early 1990s college slang it was used as a contraction for twelve pack. As in a twelve pack of beer.
I'm going to the store to pick up a twack.
by Matthew Lefevre June 22, 2005
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Beyond tweeked....Twacked
A person who using meth and stays up for weeks at a time with no sleep. Paranoid everyone knows they on drugs. Every sound they hear they think the cops are coming for their $20 bag having ass.....nail holes in walls are really someone watching having, so they got to Cover holes with tape.
"That dude ain't wacked , hes TWACKED!!"
by Wildcherry26 December 21, 2016
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