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2.
-n.- a person, bi-pedal and semi-intelligent, best described as a pestering (similar to that of a gnat; hence the term) dickhead

antonym: peckerhead
You're aggravating the hell out of me, you peckergnat!
by kgill May 11, 2005
 
1.
small gnats flying around a dogs pecker when its hot outside
Bob:Hey bill look at spot hes swarming with pecker gnats, hes licking his balls, bet you wish you could do that Bill: spot would probably bite me Bob.
by briar gates November 13, 2004