to throw a stick into the gear box. to make an easy situation or circumstance more complicated than is neccesary.

also to describe a person as an idiot.
"John really wang-nutted up the Brewster account when he included the mandatory car rental clause."

"Mom always said that Mary was something special. Little did we realize she meant Mary is a wang-nut."
by mysterJay June 6, 2009
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