From The Collaborative International Dictionary of English v.0.48:
Fiddle \Fid"dle\, v. i. [imp. & p. p. Fiddled; p. pr. & vb. n. Fiddling.] 1. To play on a fiddle. [1913 Webster]
Themistocles . . . said he could not fiddle, but he could make a small town a great city. --Bacon. [1913 Webster]
2. To keep the hands and fingers actively moving as a fiddler does; to move the hands and fingers restlessy or in busy idleness; to trifle. [1913 Webster]
Talking, and fiddling with their hats and feathers. --Pepys. [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Fiddle \Fid"dle\ (f[i^]d"d'l), n. [OE. fidele, fithele, AS. fi[eth]ele; akin to D. vedel, OHG. fidula, G. fiedel, Icel. fi[eth]la, and perh. to E. viol. Cf. Viol.] 1. (Mus.) A stringed instrument of music played with a bow; a violin; a kit. [1913 Webster]
2. (Bot.) A kind of dock (Rumex pulcher) with fiddle-shaped leaves; -- called also fiddle dock. [1913 Webster]
3. (Naut.) A rack or frame of bars connected by strings, to keep table furniture in place on the cabin table in bad weather. --Ham. Nav. Encyc. [1913 Webster]
Fiddle beetle (Zool.), a Japanese carabid beetle (Damaster blaptoides); -- so called from the form of the body.
Fiddle block (Naut.), a long tackle block having two sheaves of different diameters in the same plane, instead of side by side as in a common double block. --Knight.
Fiddle bow, fiddlestick.
Fiddle fish (Zool.), the angel fish.
Fiddle head, See fiddle head in the vocabulary.
Fiddle pattern, a form of the handles of spoons, forks, etc., somewhat like a violin.
Scotch fiddle, the itch. (Low)
To play first fiddle, or To play second fiddle, to take a leading or a subordinate part. [Colloq.] [1913 Webster]
From The Collaborative International Dictionary of English v.0.48:
Fiddle \Fid"dle\, v. t. To play (a tune) on a fiddle. [1913 Webster]