A Bilbo Biggins is a Big Boned Co-Worker that you secretly make fun of. Usually a Bilbo Biggins has a Big Bobble Head and farts in other people's work areas. A Bilbo Biggins is always out of breath due to the tripple chin blocking the airway.
Also known as a B.B.J.
1. Jesus, look at Bilbo Biggins. I never thought someone could break a sweat sitting still.