The line is spoken by Peter Griffin, the central character of the animated sitcom Family Guy, created by Seth MacFarlane and first broadcast on Fox in 1999. Voiced by MacFarlane, Peter is known for blunt, overconfident reactions that become short reusable clips online. This moment circulated as a reaction sound on soundboards and in meme edits because the wording is generic enough to fit almost any nonsensical claim, while the delivery remains instantly recognisable to fans of the show and its cutaway humour style.