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GAS is a commonly used acronym to describe someone who is unfaithful. More specifically unfaithful in a long term relationship (> 5 years)

The term is sometimes used as a greeting in some circles.
Abraham - “Mush, just found out my lass has been cheating on me for 20 months with some dingwhop from her work”

Ariana - “She’s a total GAS mate”
GAS by Littlemush12345 August 17, 2019
“gas” is another term for marijuana(weed)
“yo Tony, you got the gas?”
gas by horny nemo September 2, 2019
Man, that’s gas.
Gas by Bananapanana November 30, 2019
GAS is an acronym for Gay Anal Sex
Person 1: Yo bro want some GAS?
Person 2: Hell yeah
GAS by John jock February 5, 2020
referring to something really good.
dude this pasta is so gasss”
Gas by T-Fades July 4, 2020
Damn bro this is gas / damn bro those burgers were gas
Gas by Johnny konner August 5, 2020
Great weed. The best weed ever some exotic shit.
This runtz is fucking gas you wanna pack a bowl?!
Gas by braindead September 15, 2020
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