Fap Roulette is a form of online entertainment that gained popularity on the internet, particularly on platforms like YouTube Live, Twitch, and various forums. The concept is simple yet controversial: participants agree to play a game where they either masturbate or refrain from masturbation based on the outcome of a random event, often generated by a roulette wheel or a similar randomizer.

Much like a slot machine, the core appeal is the unpredictability of the content.