be tight-arsed

(British & Australian very informal) also be tight-assed (American very informal)

to be worried about small details that are not important Don't ask Jack to get involved, he's so tight-assed and really irritating.

Name	Pronounced	Usage
Jekaterina	ye-kah-tye-REE-nah, ee-kah-tee-REE-nah	Russian
Michelangela	-	Italian
Jarrod	JER-əd, JAR-əd	English
Metody	me-TAW-di	Polish
Umeko	oo-me-ko	Japanese
Aude	OD	French