fiddler

noun

1. 1.One who plays the fiddle.
2. 2.One who fiddles.
3. 3.A burrowing crab of the genus Gelasimus, of many species. The male has one claw very much enlarged, and often holds it in a position similar to that in which a musician holds a fiddle.
4. 4.The common European sandpiper (Actitis hypoleucos); so called because it continually oscillates its body.