rattail

noun7

1. •
   A hairstyle characterized by a long lock of tail-like hair dangling from the back of the head; the dangling lock itself.
2. •
   Any of the large dark-colored deep-sea fish of the Macrouridae family of ray-finned fish.

   • In the North Atlantic, Russians pioneered the harvesting of rattails, a ubiquitous deep fish with big eyes and a long tail that swishes back and forth in a sinuous motion. — 1995
3. •
   A type of file (cutting tool) with a round cross section and usually also a taper toward the distal end.
4. •
   (slang) A towel that has been tightly twisted along the diagonal to make a rudimentary whip with a towel corner at the tip, typically used in juvenile pranks.
5. •
   A fish, a California chimera (Hydrolagus colliei, syn. Chimaera colliei).
6. •
   The flowering plant Stachytarpheta cayennensis.
7. •
   An excrescence growing from the pastern to the middle of the shank of a horse.