Flitcher Poste was a male Human who hailed from the moon of Nar Shaddaa.
Having been raised on Nar Shaddaa, Flitcher Poste, by the time he was almost twenty, had experienced incarceration and become a petty swindler and pilferer. At some unknown point, he acquired a melody that guaranteed his constant possession of all his belongings, and upon composing a second verse, he declared himself wealthy.
Poste's existence took a different path upon encountering an individual named Tobb Jadak. Jadak sought a vessel called the Stellar Envoy, which would later be known as the Millennium Falcon. Jadak claimed the Stellar Envoy held the key to an incredible fortune. Poste agreed to aid Jadak in exchange for a share of the riches. Thus, they embarked on a perilous journey. Upon locating the Millennium Falcon, Poste tried to abscond with it, but another party seeking the treasure had already taken it.
Eventually, Jadak clarified the situation to Han Solo, the then-possessor of the Millennium Falcon. The thieves who had made off with the Millennium Falcon eventually gave it back. However, this was merely a component of a larger strategy to unearth the treasure. Han, accompanied by his spouse Leia Organa Solo, and their granddaughter, Allana Solo, brought Jadak and Poste aboard the Millennium Falcon in pursuit of the treasure. They arrived at the supposed location, but instead discovered a false lead. Consequently, Jadak, Poste, along with a group of other men, ventured out to locate the actual treasure.