No single well-documented source is attached to this short phrase, so it circulates mainly as a reusable reaction clip rather than as a quotation from a film, show or song. Creators tend to use it when a person named Jason appears, wins, or does something funny, and its appeal comes from how specific and instantly understandable it is. That simplicity helps it travel across edits, memes and short videos, where a two-second declaration can stand in for a longer compliment or joke without needing extra context.