set (one's/someone's) back up

To be or become angry, hostile, defensive, or irritable, or to cause such a feeling in someone else. John started setting his back up when his parents brought up the subject of college again. Election season always sets my dad's back up. Few things set my back up like hearing about a poacher killing an endangered animal.

Common Names:

Name	Pronounced	Usage
Silas	SIE-ləs (English)	English, Greek, Biblical, Biblical Latin, Biblical Greek
Clytia	-	Greek Mythology (Latinized)
Kai (1)	KIE (German, Swedish, Finnish)	Frisian, German, Swedish, Norwegian, Danish, Finnish, Dutch
Valeriya	vah-LYE-ree-yah (Russian)	Russian, Ukrainian
Mitsuko	mee-tsoo-ko	Japanese
Tancredo	-	Spanish