(one's) back is up

One is angry, hostile, defensive, or irritable, often due to a particular cause. John's back is up now. You shouldn't have brought up the subject of college. It's election season, so my dad's back is up all the time.

Common Names:

Name	Pronounced	Usage
FevzİYe	-	Turkish
Jana (1)	YAH-nah (Dutch, German)	Czech, Slovak, Dutch, German, Slovene, Catalan
Arif	-	Arabic, Indonesian, Urdu, Punjabi, Bengali
Oded	-	Biblical
Secundinus	-	Ancient Roman
Charline	-	French