Top Definition
Roist is a universal verb. It can replace any word as long as the meaning of the sentence is still clear. ex. "roist me another beer", "let's roist up a couple of steaks".
"If you don't like my fire then don't come around. Cause I'm going to roist one down."
by Carnbarn Chad September 18, 2007
2 more definitions
15 Words related to roist
refering to a female being ripe, moist or both
ahh shes looking roist, aran your mums roist, ohh its roisting in here!
by Theeman2k10 :) April 28, 2010
An old fashioned pumping in the sac!!
watchaa do last night mate??

Fuck all, roisted a wee slag!!
by scottmcdee July 26, 2009

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