rat-tail

noun

1. 1

   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.

2. 2

   An excrescence growing from the pastern to the middle of the shank of a horse.

3. 3

   A fish, the California chimera, Hydrolagus colliei, syn. Chimaera colliei.

4. 4

   Any fish of the genus Macrourus; a grenadier.