(idiomatic, slang, somewhat vulgar) To be on the hunt for a (usually sexual) partner.

(surfing) A deck grip pad at the rear (ie. tail) of a surfboard, for the surfer's back foot to stand on.

(aviation) A type of aircraft that has the horizontal stabilizer situated atop, or near the top of, the vertical stabilizer.

Alternative form of ponytail

(programming) Employing tail recursion.

(programming) The technique of writing a function so that recursive calls are only done immediately before function return, particularly when recursive control structures are used in place of iterative ones.

(nautical) A block having a rope about it, and on an end hanging several feet from it.

(idiomatic) To turn away from someone or something, in preparation for running away; to reverse direction; to leave or flee.

plural of tail pad

(idiomatic) The practice of flipping a coin in the air, to choose between two alternatives based on which side lands face up.