Words made up by Dr Seuss Theodore Geisel’s lack of true rhyming ability Dr. Seuss made up hundreds https://www.wordnik.com/lists/words-made-up-by-dr-seuss https://www.wordnik.com/lists/words-made-up-by-dr-seuss https://www.wordnik.com/lists/words-made-up-by-dr-seuss https://www.wordnik.com/lists/words-made-up-by-dr-seuss Wordnik "diffendoofer" or "fizza-ma-wizza-ma-dill" https://www.wordnik.com/lists/words-made-up-by-dr-seuss https://www.wordnik.com/lists/words-made-up-by-dr-seuss https://www.wordnik.com/lists/words-made-up-by-dr-seuss Words made up by Dr Seuss https://www.wordnik.com/lists/words-made-up-by-dr-seuss "diffendoofer" or "fizza-ma-wizza-ma-dill"