What's got into?

What's got(ten) into someone?

What is bothering someone?; What caused someone to act that way? (Past or perfect only. The has is contracted except for emphasis.) I just don't know what's gotten into her. I don't know what got into me.

Common Names:

Name	Pronounced	Usage
Jamshid	-	Persian, Persian Mythology
Hilary	['hiləri]
Karla	['ka:lə]
Celio	CHE-lyo (Italian), THE-lyo (Spanish), SE-lyo (Latin American Spanish), SE-lyoo (Portuguese)	Italian, Spanish, Portuguese
Georgo	ge-OR-go	Esperanto
MÁIrtÍN	-	Irish