With no widely documented origin tied to this particular clip, its life online comes mainly from short-form creators who reuse small, instantly recognisable sounds as quick jokes. Peanut butter works as that kind of shorthand because almost everyone knows the food, so the reference needs no explanation and fits into edits about snacks, cravings, breakfast or deliberately random humour. That low-effort familiarity is why it keeps appearing in memes and reaction edits, where a single familiar word can turn an ordinary moment into something shareable.