A big fat greasy ass kid, commonly in his early teens, who has a tendency to physically exert his sexual desires aswell as put his hand in his pants during public situations. There is a large chance that a 'grubby boy' is a future nonce. If you know any grubby boys, DM me cause I want them (no homo)
by 567;D888 November 23, 2018
Get the Grubby boymug.