Definition of leapers:
(n) :
One who leaps.
(n) :
Synonym of jumper (“person who attempts suicide by jumping from a height”).
(n) :
A person whose birthday falls on 29 February, and thus only occurs in leap years.
(n) :
(chess) A piece, like the knight, which moves a fixed distance, and ignores pieces in the way.
(n) :
A kind of hooked instrument for untwisting old cordage.
(n) :
(fandom slang) A fan of the television series Quantum Leap.