- expressionless; impassive
- stern, smug, humorless, etc.
Origin of po-faced; from uncertain or unknown; perhaps po (= chamber pot) + faced; by analogy with poker-faced: see poker face
Origin of po-facedFrom po, chamberpot (a po-faced expression being likened to that of a person observing the contents of a chamber pot with disgust), from French pot de chambre, chamber pot : pot, pot + de, of + chambre, room.
(comparative more po-faced, superlative most po-faced)