Stomach

The stomach was an organ used for digesting food. The sarlacc took a millennium to digest its victims, an agonizing execution that Jabba the Hutt planned to subject Luke Skywalker, Han Solo, and Chewbacca to.

Later on Endor, Han admonished Chewbacca for thinking with his stomach after he pulled a carcass and got them caught in an Ewok booby trap.

Behind the scenes
StarWars.com clarifies that the Millennium Falcon was in the gullet of the space slug, not its stomach.

Appearances

 * Darth Maul, Part IV
 * Adventures in Wild Space: The Steal
 * Adventures in Wild Space: The Dark
 * Ahsoka
 * Rebel Rising
 * Thrawn
 * The Rebellion Begins
 * Servants of the Empire: Rebel in the Ranks
 * Servants of the Empire: Imperial Justice
 * Servants of the Empire: The Secret Academy
 * Guardians of the Whills
 * A New Hope: The Princess, the Scoundrel, and the Farm Boy
 * Battlefront II: Inferno Squad
 * Star Wars: Episode VI Return of the Jedi
 * Aftermath
 * Aftermath: Life Debt
 * Aftermath: Empire's End
 * The Legends of Luke Skywalker
 * Phasma
 * Before the Awakening
 * Join the Resistance: Escape from Vodran
 * Star Wars: The Force Awakens: A Junior Novel
 * Aftermath
 * Aftermath: Life Debt
 * Aftermath: Empire's End
 * The Legends of Luke Skywalker
 * Phasma
 * Before the Awakening
 * Join the Resistance: Escape from Vodran
 * Star Wars: The Force Awakens: A Junior Novel
 * Before the Awakening
 * Join the Resistance: Escape from Vodran
 * Star Wars: The Force Awakens: A Junior Novel