Flasher /(?)/

Flash·er

Flasher

n.
  1. One who, or that which, flashes.
  2. A man of more appearance of wit than reality.
  3. A large sparoid fish of the Atlantic coast and all tropical seas (Lobotes Surinamensis). (Zool.)
  4. An exhibitionist{1}, especially a male, who briefly exposes his private parts in a public place.