The exact origin of this clip is undocumented; it surfaced on a user-generated soundboard under the games category with the label 'Brandy - Wei lei lo mo' and no artist or source metadata. The phrase itself reads like playful phonetic gibberish rather than a known quote, which is likely why editors adopted it as a blank-slate taunt. Short nonsense chants travel well because they need no translation, and this one has found a small niche as a quick reaction sound in gaming edits and meme compilations, where its bouncy rhythm does the comic work.