I got a email yesterday with the following question;
"
Just as an aside, could you tell me how you define the phrase "Uff Da"? We have some
Norwegians around here that have some strange meanings for that small phrase. 
"
UFF DA roughly means "drats," "oh crap", "oops!" or "ouch!"I did a Google search, and I was surprised how many hits i got.
Even t-shirts, tiles, posters etc. with this small Norwegian phrase.
Even found a video on youtube
UFF DA IS:
*trying to dance the polka to rock and roll music
*losing your wad of gum in the chicken yard
*having Swedish meat balls at a lutefisk supper
*spending two hours cleaning up my room and my mom says 'Uff Da'
*walking downtown and then wondering what you wanted
*arriving late at a lutefisk supper and getting served minced ham instead
*looking in the mirror and discovering you're not getting better, just older
*having a mouse crawl up your leg when you're on a hayload
*eating hot soup when you've got a runny nose
*getting out of bed in the morning with a backache
*getting swished in the face with a cow's wet tail
*waking yourself up in church with your own snoring
*forgetting your mother-in-law's first name
*when two steady girl friends find out about each other
*noticing non-Norwegians at a church dinner using lefse for a napkin
*eating a delicious sandwich and then discovering the spread is cat food
*sneezing so hard your false teeth end up in the bread plate