A male who likes to "jack off" or masturbate alot.
"Hey throttle jockey, did u have fun with pamela handerson last night??"
by Zac April 12, 2004
A person who races anything with a throttle on it. Hand-eye coordination and concentration are the key elements of being a throttle jockey as where physical condition is not.

Example: Nascar drivers
Damn throttle jockeys are out street racing again tonite!
by MustangGT September 26, 2005