A novice jockey who has not yet ridden for a full year past his or her 35th winner, or some other time frame specified by a given state’s racing rules. While jockeys serve their apprenticeship, they are accorded a 5-to 10-pound weight allowance, or reduction from their respective weight assignments in all races except stakes. The slang term for an apprentice allowance or rider is “bug boy.” The term comes from the asterisk that usually accompanies an apprentice rider’s name in the entries.