This sound comes from Undertale, the 2015 indie RPG created by Toby Fox. The game's simple retro sound design made many of its effects easy to recognize outside gameplay, and the damage cue spread in meme edits and short videos as a clean way to signal a hit, loss or emotional sting. It is still popular because the clip is extremely short, readable even without context, and familiar to players who also know other iconic game reaction sounds like the Roblox oof.
About this sound
The short hit sound from Undertale, heard when a character takes damage. People use it in edits, memes and fail clips to mark a loss or painful mistake.
This clip is the quick damage cue from Undertale, a tiny burst of crunchy game audio that plays the instant a hit lands. It is very short, sharp and unmistakably retro, with the kind of pixel-era texture that makes even a simple mistake feel dramatic. Because it is so brief, it works like a punchline: drop it right on a bad move, a lost point or an awkward moment, and viewers instantly read it as damage taken, failure or emotional pain.