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
Pruett	['pru:ət]
EkİN	-	Turkish
Thoma	-	Old Church Slavic
Yale	-	Welsh
Mariana	['mɛəri'ænə]
Ukko	OOK-ko (Finnish)	Finnish, Finnish Mythology