The name comes from the sound itself, a short onomatopoeic grunt that users have shared on soundboards as a quick shorthand for physical strain. Because it is only about two seconds long, it fits easily into short-form videos, reaction clips, and gaming streams where a creator needs an instant cue for effort without a long setup. Its popularity is not tied to a single show or character, but to its versatility: the same grunt can make a workout, a move, or a failed attempt feel funnier by turning ordinary effort into an over-the-top moment.