Double-talk
Double-talk is a form of speech in which inappropriate, invented, or nonsense words are used to give the appearance of knowledge and so confuse or amuse the audience.
Comedians who have used this as part of their act include Al Kelly, Cliff Nazarro, Danny Kaye, Gary Owens, Irwin Corey, Jackie Gleason, Jerry Lewis, Sid Caesar, Stanley Unwin, Reggie Watts, and Vanessa Bayer.