What is Frub?
1.
stands for Fat Repulsive Ugly Bastard
Shut it you frub!!!!!
See
2.
Frub is a derogatory word used to describe a repulsive female. It is an acronym for Fat Retarded Ugly Bitch.
The girl over there is a frub. She looks like a rat.
See
3.
an uncommonly used expression referring to an object or subject of little to no worth; also a bubbly substitute for crap or shit. Origen- the Davemiester, Malden MASS
"The song we sang about Dave is such a piece of frub."
See
4.
Slang for jerking off
Aww man are you frubbing again?
See