Top Definition
QAST means "Quality Ass-Sitting Time". This would entail time after work watching TV, drinking beer, farting etc.

Great word to use in Scrabble when you don't have a U on your rack.
Hey man, wanna go bowling tonight? Nah, I'm tired. I'm gonna go home and get some qast.
by jimmykicker June 22, 2009
5 Words related to QAST

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