I don't know how to speak Norwegian, but according to the subtitles, the English translation is:  

>We found a fucking alien!  Cheers!

By slightly altering the dialogue to "We *have* found a fucking alien!", we get a Norwegian translation of:

>Vi har funnet en jævla utlending!  Skål!

As I said, I don't know how to speak Norwegian, but this is very similar to what I think I hear in the clip.  I'm not sure about the word "utlending" - it could also be "utenomjordisk".