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
Emile	[ei'mi:l]
Filippos	-	Greek
Abd Al-Aziz	-	Arabic
Vilhelms	-	Latvian
Amarachi	-	Western African, Igbo
Debby	DEB-ee	English