Bazinga became Sheldon Cooper's catchphrase on the CBS sitcom The Big Bang Theory, which ran from 2007 to 2019 and starred Jim Parsons as the socially blunt physicist. Sheldon used it after practical jokes and trick statements, and early online fans turned the moment into a meme through reaction clips, GIFs and quote posts. The word itself predates the show as a variant of zinger, but the series made this specific delivery famous. Its brevity keeps it popular for edits where a creator needs an instant, recognisable signal that a joke has just landed.