Life debt

"Jar Jar owes me what's called a life debt."

A life debt was a social custom against the which stated that if someone had saved a person's life, then that person owed the one who had saved them something in return.

History
"Your gods demand that his life belongs to me now."

When Nass was planning to punish  for his transgression in returning to  after being banished,  claimed a life debt on Jar Jar in order to prevent him from being punished and retain his services as a guide on.

Appearances

 * Star Wars Episode I: The Phantom Menace
 * Star Wars Journeys: The Phantom Menace