Online, Mr On Blast circulates as a short meme sound for callout humour rather than a clip tied to one widely documented scene. The phrase on blast comes from slang for putting someone's business out in public, and creators borrow that meaning for edits about secrets, slip ups and playful accusations. Its eleven second length gives it room to build the joke before the punchline, so it is shared in soundboards, short videos and group chats where a quick, recognisable reaction is needed without setting up a longer reference or explanation for new viewers watching.