Bazinga is a term popularized by Sheldon Cooper and usually used at the end of a joke or prank, and means "Gotcha" or "You cheated." It can also be used after attack someone verbally, often used after a sarcastic comment.

Bazinga The expression was first used in the American television series The Big Bang Theory also known in Brazil as Big Bang: The Theory. The character Sheldon Cooper (played by Jim Parsons) uses the expression Bazinga after jokes and snide remarks to highlight your sense of humor that is unusual.