Gibberish is a form of speech that is intentionally meaningless and incomprehensible. It is often used for comedic effect, as a way to avoid saying something that one does not want to say, or as a way to practice speaking a language without actually saying anything meaningful.
There are many different ways to speak gibberish. Some people simply string together random words or sounds, while others use more structured methods, such as speaking in tongues or using a code language. There is no right or wrong way to speak gibberish, as long as the speaker and listener understand that the speech is not meant to be taken seriously.