The Mancubus is a bulky, fireball-throwing demon from the Doom series, first introduced in Doom II, and its distinctive pain sound has been lifted from gameplay clips and shared across soundboards and short videos. Players recognise the wavering cry instantly from taking down the demon, and creators reuse it far beyond Doom itself as a shorthand for exaggerated hurt. Like the classic Minecraft pain sound, it works because it is instantly recognisable, easy to drop into edits, and funnier the more seriously a scene tries to play it.