A popular expression of frustration, which is a much friendly expression than some popular four-letter expressions. Popular uses include, but are not limited to the following.
Eino: The government is going to audit my income tax!
Toivo: Uff Da!
Kaapo: Did you see that buck over der?
Hanna: Uff Da!
Armo: Can you believe Lake Superior is only 10,000 years old this year?
Tapio: Uff Da!
Just don't spill your coffee when you hit a pothole and shout Uff Da!