What are your favourite nonsense words, where do they come from, and what do they mean?
Smeg, Red Dwarf - used as a profanity.
Potzrebie, Mad Magazine - thickness of Mad Issue #26, which is approximately 2.263348517438173216473 mm. Alternatively, used as a nonsense word.
Fnord, Principilia Discordia - a word that cannot be read, which induces unease and confusion, and prevents rational consideration of a subject. Also indicates a worldwide conspiracy.