jock

Indeed, sir, the term jock typically refers to a student or athlete who is particularly fond of sports, often associated with school life and physical activity. In British usage, it can also denote someone who is lively, well-dressed, and perhaps a bit showy in their manner. The word has its roots in the sport of jogging, though over time it has taken on more general connotations. It would seem that jock is as much about attitude as it is about athleticism.