Short burp clips like this one are shared on soundboards as quick reaction sounds rather than as lines of dialogue, because the joke is in the timing and the unimpressive delivery, not in any words. Creators drop the sound into memes, edits and reaction videos when they want to puncture a serious or boastful moment with something crude and anticlimactic. Its length, just over a second, makes it easy to slot between lines without breaking the pace. That brevity, plus its instantly recognisable, messy sound, is why it keeps getting reused for short-form comedy.