One who rushes or hurries; an energetic person.
A charlatan, huckster, grifter, swindler, a scoundrel.
A pimp.
Somebody who pretends to be an amateur at a game in order to win bets.
A male prostitute who sells his services to men.
A prostitute.
A successful person or thing, serving as a model for others.
Anecdotal evidence for the benefits of some product or policy.