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1.
n. The nerdiest of all high fives, at least until a Star Trek high five is made.
The act of high fiving using 'The Force', wherein the two participants start like a regular high five, but then as the hands get closer, the hands push against an invisible wall (hence the Force part), edging the hands slowly forward as if struggling. Finally, as the hands get close to each other, the two participants fly apart form each other, as though they have both been hit by a Force Push.

Originates from Anakin Skywalker and Obi-Wan Kenobi during the final fight on Mustafar in Star Wars: Episode 3.
"Awesome killing spree on Battlefront 2. Force five?"
by Andy Hutchings November 07, 2007
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