What the deuce?

Sl. What has happened?; What? (Deuce is an old word for devil.) What the deuce! Who are you? What the deuce! Who did this?

interrog. What has happened?; What? (Deuce is an old word for devil.) What the deuce! Who are you?

Name	Pronounced	Usage
MÓZes	-	Hungarian
DevrİM	-	Turkish
Yvon	-	French
Alaric	AL-ə-rik (English)	Ancient Germanic
Harding	['ha:diŋ]
DÁLach	-	Irish