As a noun jockey
is jockey (one who rides racehorses competitively).
As an adjective jokey is
One who rides racehorses competitively.
That part of a variable resistor or potentiometer that rides over the resistance wire
An operator of some machinery or apparatus.
(dated) A dealer in horses; a horse trader.
(dated) A cheat; one given to sharp practice in trade.
(UK, crime, slang) A prostitute's client.
(Ireland, crime, slang) A rapist.
* disc jockey
To ride (a horse) in a race.
To maneuver (something) by skill for one's advantage.
To cheat or trick.