Orochi Iori comes from SNK's The King of Fighters series, where Iori Yagami is overtaken by the Orochi power in his blood and becomes faster, wilder and far less controlled. That berserk version became one of the most recognisable forms in the franchise, so his strained shouts and attack cries are often ripped as standalone clips for soundboards. Online, this short sound survives as a compact gaming reaction, reused in edits, versus videos and meme posts whenever a normal character needs to feel suddenly unhinged and dangerous in under a second.