This line comes from Piemations' animated Five Nights at Freddy's parody 5 AM at Freddy's: The Prequel, a comedic reworking of the horror game in which Freddy, Foxy and Balloon Boy appear alongside the night guard. The phrase caught on because it turns the game's tense night-shift premise into a simple, quotable reveal, and fans began reusing it in edits, reaction videos and soundboards. It remains popular with Five Nights at Freddy's fans because the delivery is instantly recognisable and fits any surprise entrance.