Any person who annoys you while shaking change in his or her pockets, beyond reason, as though said person is playing a song in his or her head while shaking the pocket coins.

Typically a teacher, or any person in a cush job with a pear-shaped body.
Jason: What did Mr. Carr say the answer to 31 is?
Kyle: I don't know! He's a change fiddler, and it distracted me from hearing the answer.
by Shareeb4Prez March 5, 2010
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