propre comme un sou neuf
French
Etymology
Literally, “clean as a brand new penny”.
Pronunciation
- IPA(key): /pʁɔ.pʁə kɔ.m‿œ̃ su nœf/
Adjective
propre comme un sou neuf (plural propres comme des sous neufs)
- (simile) Very clean; squeaky clean; clean as a whistle
Usage notes
Only used in the physical sense of clean, never the moral one, which is carried by blanc comme neige.