Excess skin on overweight people.

Excess wheight noticed on fat people.

flab is an acronym for "fucking lazy ass bitch".

an acronym for:
Fucking Lame Ass Bastard

Coined by "Butch"

Noun: Butter. Commonly dispensed by tearing off one end of the paper and spreading your flab on toast like a prit-stik

A square-like flap around the crotchial area. Has ten holes going along the front edge of the flap. Able to have sex with both genders. Usually found on he-shes.

When your walking and someones piece of fat most times arm fat slaps you in the face you have been FLABBED!