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
EdvÁRd	-	Hungarian
Santtu	SAHNT-too	Finnish
Liam	LEE-əm (English)	Irish, English
Frauke	FROW-kə	German
Horsa	-	Ancient Germanic
Pista	-	Hungarian