get (someone's) back up

To become or cause to become angry, hostile, defensive, or irritable. John got his back up when his parents brought up the subject of college. Election season always gets my dad's back up.

Common Names:

Name	Pronounced	Usage
Kelan	-	Irish
Lorenza	-	Italian, Spanish
Natalius	-	Late Roman
Asa	AY-sə (English)	Biblical, Hebrew, Biblical Hebrew
Chrissie	KRIS-ee	English
Dietrich	DEET-rikh	German