what the fuck

vad fan, vad fittan, vad i helvete, vad i hela kuken

1. (vulgar) Used to express astonishment, shock, incredulity, or disbelief (as an ellipsis of longer expressions).

2. (vulgar) Used to express nonchalance or the dismissal of any consequences of something one is about to do.

3. (interrogative, vulgar, slang) An intensive form of what.