Usually relating of a person of a rather larger than normal size, with a repulsive or disturbing appearance, and the characteristics of a fuck.
Nate: EWW REALLY DUDE!? Look at her! She naturally has a huge ass because she's a moff you freak.
Sean: Yo man, I like 'em fat. Mo' cushion for da pushin'. Ya kno what I'm sayin'?
Kevin: Thanks! I feel moff aswell.
Silvia: Holy!!!! What happend to you?
James: The party last night made me absolutely moff. Way to much booze. I need to rest and go on a detox.