Top Definition
When someone in the tool room leans back and moves forward vigorously and the moose knuckle moves forward swinging in a pendelum motion on someone else s body
Terp stands up behind darren and leans back quickly to stretch, while moose knuckle moves forward in pendelum motion and hits the back of darrens head creating a scenario known as moose knuckleing

opposite of teabagging
by AnonymousDong January 24, 2013

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