Foxy was introduced in Five Nights at Freddy's, the 2014 indie horror game by Scott Cawthon, where the animatronic fox sprints down the hall and knocks on the security office door. Clips of that knock, labelled toc toc in French and Spanish speaking communities, spread on soundboards and short video edits alongside the FNAF jumpscare scream. The sound stays popular because the game remains a staple of horror streaming, and the knocking alone signals danger without showing the character.