Flyboy is a gladiatorial competitor in Mr. Torgue's Campaign of Carnage. He is a boastful, young aviator who taunts up and coming contenders to his position on the leader board. He often uses slang which makes little sense.
Flyboy is ranked number two on the Arena leaderboard.
Game Spoilers! Expand at readers own risk.
Flyboy appears as a boss, but as soon as he makes his entrance he is killed when his buzzard is struck by a missile from Piston's Blimp without Flyboy ever even firing a shot.