“Bazinga” became widely known through Sheldon Cooper on the sitcom The Big Bang Theory, where the character uses it after jokes and pranks. The show premiered in 2007, and the catchphrase spread online through clips, GIFs and reaction edits. Because the word is so short and instantly tied to Sheldon’s personality, it remains popular in meme videos, soundboards and social posts whenever creators want a quick, smug comedic sting.