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
Folke	FOL-ke (Swedish)	Swedish, Norwegian, Danish
Joan	['dʒəun]
Lurdes	-	Portuguese
Lilly	['lili]
Cunobelinus	kyoo-no-bə-LIEN-əs (English)	Ancient Celtic
Vishal	-	Indian, Hindi, Marathi, Gujarati, Punjabi, Telugu, Tamil, Kannada, Bengali