jock
noun
[ dʒɒk ]
• a disc jockey.
• an enthusiast or participant in a specified activity.
• "a computer jock"
Origin:
late 18th century (denoting a rider in horse races): abbreviation of jockey.
jock
noun
• another term for jockstrap.
• an enthusiastic male athlete or sports fan, especially one with few other interests.
Jock
noun
• a Scotsman (often as a form of address).
Origin:
early 16th century: Scots form of the given name Jack, originally as a name for an ordinary man (compare with jack1). The current sense dates from the late 18th century.