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 to get a Beanstar piece. However, before the brothers can receive the Beanstar piece, Teehee Valley's sand starts pouring in the large hole that Bloat previously blocked, pushing the ship out to sea and sinking it in Oho Ocean.

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.