This effect comes from Five Nights at Freddy's 4, the 2015 survival horror game by Scott Cawthon. In that game, the flashlight is part of the core listen-and-check gameplay loop, so its click became closely tied to suspense and panic. Online, creators use it as a shorthand for cautious horror-game checking, especially in FNAF compilations and edits. It is often paired with a FNAF Jumpscare Scream for a setup-and-payoff sequence, which helps keep the sound recognizable years after release.