be the wrong side of 30 etc

be (on) the wrong side of 30/40 etc.

to be older than 30, 40 etc. I don't know his exact age but I should say he's the wrong side of fifty.

Name	Pronounced	Usage
Pierre	PYER (French)	French, Swedish
Ezio	E-tsyo	Italian
Milly	MIL-ee (English)	Swedish, Norwegian, English
Erica	['erikə]
Teresia	te-RE-see-ah	Swedish
LucÍA	loo-THEE-ah (Spanish), loo-SEE-ah (Latin American Spanish)	Spanish