stick up (one's) ass

rude slang A rigid and uptight demeanor. I can't believe Ms. Jones gave me a demerit for being a minute late! Ugh, she has such a stick up her ass! Tim's no fun, he always has a stick up his ass—why did you invite him to your party?

Common Names:

Name	Pronounced	Usage
Cora	KAWR-ə (English)	English, German, Greek Mythology (Latinized)
Esperanta	e-spe-RAHN-tah	Esperanto
Felice	[fə'li:s]
BÁLint	BAH-leent	Hungarian
Finn (2)	FIN (Danish)	Danish, Norwegian, Swedish
Idwal	-	Welsh