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1.
The result of sexual conduct with a Finnish girl. The act entails the Finnish girl vomiting at point of orgasm.
'Hey Jamie did you get with Jenni?'
'Yeah! She Finnish finished everywhere!'
by finishonthejacket June 06, 2013
 
2.
It's when a girl is giving you a footjob with skates on her feet and you then cum super-hard as a result!
Bro 1: Dude, what did you and your Finnish girlfriend Anna do last night?

Bro 2: BROOO!! She gave me a Finnish Finish, it was sooo intense! I came right on her face!

*Fist-bump between the bros*
by what a guy 2205 February 10, 2011