What's biting?

What's biting somebody?

(informal)

something that you say in order to ask why someone is in a bad mood What's biting her? She hasn't said a word all morning.

Name	Pronounced	Usage
Gyneth	-	Literature
Jon (2)	JAHN	English
Braden	['breidn]
Lachina	-	Scottish
Trond	-	Norwegian
Irvin	['ə:vin]