The shout comes from Bonelab, the virtual reality game in which Null Bodies are aggressive figures that attack when provoked. Their short aggro call works as an audio cue that a calm exploration moment has turned hostile, which is why clips of it circulate among Bonelab and VR gameplay fans. Because the sound is under a second long and instantly readable as anger, editors keep reusing it as a quick punch-in for confrontations, challenges and surprise encounters in short-form videos.