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1.
Keying occurs when someone uses a key to scratch a car, usually as a form of vandalism or revenge.
Trent: After I dumped her my ex-girlfriend gave my car a good keying.
by getp November 01, 2009
 
2.
When you take 2 house keys and make them pole dance on a wire hanger.
Damn, My keys are so hott at keying.
Keying turns me on.
by Tori^Brittany October 27, 2007