What does fluke mean?

fluke: a stroke of luck; a barb on a harpoon or arrow; flat bladelike projection on the arm of an anchor; either of the two lobes of the tail of a cetacean; parasitic flatworms having external suckers for attaching to a host
Updated on Friday, February 03 2012 at 11:57PM EST
Collections: harpoonflukebarblobeanchor