Friday Night Funkin' is an open-source rhythm game first released in 2020, in which the player character raps against opponents while Girlfriend watches from her speakers. Short vocal clips of Girlfriend taken from the game's audio files later circulated on soundboards and in fan edits, where they became handy reaction sounds for rhythm-game content. Because the clip is under a second long, it is easy to drop into short-form videos and online jokes, and it remains popular with FNF fans who instantly recognise Girlfriend's playful tone.