thorn in the flesh

A constant or persistent cause of annoyance, frustration, or trouble. My little brother is such a thorn in the flesh—he always wants to do stuff with me, especially when I'm trying to hang out with my friends.

Common Names:

Name	Pronounced	Usage
Bas	BAHS	Dutch
Irvin	['ə:vin]
Yekonyah	-	Biblical Hebrew
Svanhildur	-	Icelandic
Amun	AH-mun (English)	Egyptian Mythology (Anglicized)
Vincenza	veen-CHEN-tsah	Italian