Definitions by MEvans
biff
noun: a large male aged 18-45. This male has an over-inflated ego, a small level of intelligence, and spends way too much time at the gym. Biff's enjoy wearing sleeveless shirts, flexing in casual conversation when it is not called for, loudly announcing how much cheap beer they have drank, and aggressively pursuing females with 1950's style machismo. Often employed as bouncers.