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
Babette	[bæ'bet]
Lena	LE-nah (German, Polish, Italian), LYE-nah (Russian), LEE-nə (English)	Swedish, Norwegian, Danish, German, Polish, Russian, English, Italian, Portuguese
Svitlana	-	Ukrainian
Minoru	mee-no-ṙoo	Japanese
Lettie	['leti]
Kyung-Ja	gyung-jah	Korean