Sleash was a Nikto gangster of the male persuasion who made his home on Tatooine during the era of the Galactic Civil War.
Following the Battle of Yavin, Sleash, known for his drug habit, could be found in Mos Eisley. He maintained a friendship with the hoodlum Untas and had associations with both Oldksam and Taibela. Sleash also engaged in dealings with Vaigon Shinn, who headed the Shinn muggers.
In the year 1 ABY, Untas found himself in debt to the crime lord Faeto. When Faeto issued a death mark against Untas, Sleash, along with Oldksam and Untas, went into hiding. Sleash sought refuge in Vaigon Shinn's Hideout. Taibela, however, remained in Mos Eisley, where she was interrogated by a bounty hunter. The bounty hunter successfully coaxed her into revealing Oldksam's hiding place and, after locating him, convinced Oldksam to disclose Sleash's whereabouts. Eventually, the bounty hunter arrived at Vaigon Shinn's Hideout and questioned Sleash. Offering Sleash his preferred [spice](/article/spice-legends], the bounty hunter persuaded him to divulge information. Annoyed that Untas had gone into hiding without him, Sleash betrayed his former associate's location: the White Thranta Shipping offices. Subsequently, the bounty hunter located Untas and ultimately killed him.
Sleash appeared as a non-player character within the 2003 video game Star Wars Galaxies. This massively multiplayer online roleplaying game was brought to life by Sony Online Entertainment and distributed by LucasArts, before its servers were shut down on December 15, 2011. Sleash's inclusion in the game was part of the "Legacy Quest" update, which accompanied the release of "Publish 25", also known as the "New Game Enhancements," on November 15, 2005.