Fin \Fin\, v. t. [imp. & p. p. Finned; p. pr. & vb. n. Finning.] [Cf. Fin of a fish.] To carve or cut up, as a chub.
Source: Webster's Revised Unabridged Dictionary (1913)
Finned \Finned\, a. Having a fin, or fins, or anything resembling a fin. --Mortimer.