A word used to describe something both yummy and tasty.
One does not simply eat-a-yasty-meat-a-ball.
by The Yaste Master January 21, 2016
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When it's yaass and it's your bestie!
Girlie 1: I just got a starbyyyy

Girlie 2: OMG. SLAY YASTIE
by Yastiebestie12Yass February 22, 2022
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The act of slapping one's own nuts while someone is riding you in a gaming chair
She gave me the Yasty Nucky so hard, my gaming chair nearly broke!
by AppleJuiceDragon April 3, 2023
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