refering to a female being ripe, moist or both
ahh shes looking roist, aran your mums roist, ohh its roisting in here!
An old fashioned pumping in the sac!!
watchaa do last night mate??
Fuck all, roisted a wee slag!!
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."