2 definitions by whatevermanificatioin

first, the girl must be wearing a viking helmet, then you have to do her in the ass while saying "ROW" every time you thrust, and when you finish you scream "VALHALLA" and donkey punch her in the back of the head with a fish.
Dude I cant Believe your sister let me give her a Swedish Tickler last night, best use of fish ever.
by whatevermanificatioin May 5, 2011
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made popular by the show "Ugly Americans", it is when two tree-beings finally come in contact with each other's flowers. this is a connecting mating ritual and is also a largely popular public event.
John: hey do you want to go see treegasm with me

Bill: sure let's go!
by whatevermanificatioin April 21, 2010
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