Slime Season 2 is the eighth self-released mixtape by American rapper Young Thug. It was released on October 31, 2015, as the second installment in the Slime Season series, which compiled mostly leaked and unreleased material dating back at least a year. It features production from London on da Track, Wheezy, Metro Boomin and Ricky Racks, among others. The project enlists guest features from Lil Uzi Vert, Trouble (rapper), Shad Da God, Yak Gotti, Rich Homie Quan and Birdman.

Jeffery Lamar Williams, known professionally as Young Thug, is an American rapper, singer, and songwriter. Known for his eccentric vocal style and fashion, he is considered an influential figure in modern hip hop and trap music, and a pioneer of the mumble rap microgenre. Williams embarked on a musical career in 2011, releasing a series of mixtapes beginning with I Came from Nothing. In 2013, he signed with fellow Atlanta rapper Gucci Mane's 1017 Records and gained further attention and praise for his debut mixtape with the label, 1017 Thug, released in February of that year.