An unknown trick done in any form of extreme-esque-ness sports.

The McFrosty Flip is imposible and anyone claiming to do it is a Grundle Monkey
Guy 1 - You're a faggot, do a McFrosty Flip

Guy 2 - Ive been doing that for years

Randome guy 3 - FAGGOT!! *Running sparta kick to the face of guy 2*
by McFrosty Flip June 1, 2010
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