Bloat

Bloat is a bony member of the skeleton crew of the S.S. Chuckola who, despite lacking flesh, has still managed to become obese and wedge himself in a doorway. During the events of Mario & Luigi: Superstar Saga, Mario and Luigi must blast Bloat out of the way with dynamite.

Trivia

 * According to his crew mates, he is an Ostaf, a term which the player can read as Fatso backwards, which references his large size.