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 6, 2013
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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
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When you cum you spill your load into a snow cone and slam it in your girls mouth with your Johnson like a Finnish KP-m/44 submachine gun bolt.
“Hey did you hang out with Jessica last night?”
“Yeah, we boned and I gave her the ol’ Finnish Finish.”
by TheAnimalMother912 November 20, 2020
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