poofbutt/ˈpuːf.bʌt/EtymologyFrom poof + butt. Compare puffbutt.poofbutt means A term of endearment for a person who wears diapers. Lexicurio rates it Sui generis — a strength score of 95 out of 100.poofbutt is pronounced /ˈpuːf.bʌt/.nounA term of endearment for a person who wears diapers.