Calotte (Belgium)

Examples include: Several legends explain the appearance of the calotte at the Belgian Catholic universities, but none has been definitely corroborated.

In another version, Edmond Carton de Wiart, one of the founders of the General Society for Brussels's Students (français: Société Générale catholique des étudiants bruxellois), a law student in the town of Leuven, wore the cap to go skating on the frozen lakes in the winter.

Rivalry between the two factions led to numerous bloody disputes on both sides, a tradition which still persists, albeit less heatedly, to this day.

The student is also able to express his individuality by wearing several insignia on the calotte that will reflect their academic curriculum, their personal interests and even their character.

It is a pun on "calotte" and on "kloten" (the Dutch word for testicles, which plays the role of an all-purpose swear-word like "fuck" in English).