neat as a new pin

== English == === Alternative forms === clean as a new pin neat as a pin === Pronunciation === === Adjective === neat as a new pin (simile, dated) Very clean or tidy. ==== Synonyms ==== clean as a hound's tooth clean as a new penny clean as a whistle === References === “neat as a new pin” in Idioms and phrases, TheFreeDictionary.com, Huntingdon Valley, Pa.: Farlex, Inc., 2003–2026. “as clean as a new pin”, in Cambridge English Dictionary, Cambridge, Cambridgeshire: Cambridge University Press, 1999–present.