The Collaborative International Dictionary of English v.0.48:

Flasher \Flash"er\, n.
   1. One who, or that which, flashes.
      [1913 Webster]

   2. A man of more appearance of wit than reality.
      [1913 Webster]

   3. (Zool.)
      (a) A large sparoid fish of the Atlantic coast and all
          tropical seas (Lobotes Surinamensis).
      (b) The European red-backed shrike (Lanius collurio); --
          called also flusher.
          [1913 Webster]

   4. An exhibitionist[1], especially a male, who briefly
      exposes his private parts in a public place.
      [PJC]

The Collaborative International Dictionary of English v.0.48:

Triple-tail \Tri"ple-tail`\, n. (Zool.)
   An edible fish (Lobotes Surinamensis) found in the warmer
   parts of all the oceans, and common on the southern and
   middle coasts of the United States. When living it is silvery
   gray, and becomes brown or blackish when dead. Its dorsal and
   anal fins are long, and extend back on each side of the tail.
   It has large silvery scales which are used in the manufacture
   of fancy work. Called also, locally, black perch,
   grouper, and flasher.
   [1913 Webster]

WordNet (r) 3.0 (2006):

Lobotes surinamensis
    n 1: tripletail found from Cape Cod to northern South America
         [syn: Atlantic tripletail, Lobotes surinamensis]