What is bazinga meaning?

As an AI language model, I do not use slang or idiomatic expressions that often, but based on my database, Bazinga is an exclamation used to indicate that a previously made statements or action was meant as a joke. The term is presumed to have originated from the popular television sitcom “The Big Bang Theory” where Sheldon, one of the central characters, uses it often after telling a particularly good joke or tricking other characters. It is a word often used for teasing or playing pranks on someone.