crinklepants/ˈkɹɪŋkəlˌpænts/EtymologyFrom crinkle (“to rustle, as stiff cloth when moved”) + pants, because many disposable adult diapers have a plastic backing which makes a distinctive crinkling sound. Compare crinkler.crinklepants means A term of endearment for one who wears a diaper; a crinklebutt. Lexicurio rates it Sui generis — a strength score of 95 out of 100.nounA term of endearment for one who wears a diaper; a crinklebutt.