Short for 'Fat-Actor', someone who is, well, fat, but still brings laughs. A male version of a Factress. Provides unlimited rhymes to pay out your friends with. Spawned: Factorize, factory (a place of factors), tractor factor (plowing in the mud), contractor factor (getting stuck with a loser), Benefactor (Factor called Ben), and McFactor (fast food).
'Just dont invite that factor again'. 'Asleep at 5pm? Your such a factor Dave'.