[adjective] [not gradable] - (of activities or subjects) which are not part of the usual school or college courseAvailable extracurricular activities include pottery, chess, choir, badminton and a series of visits to historic houses.(humorous) Extracurricular activities is also sometimes used to mean sexual activity.
EXTRACURRICULAR
Meaning of EXTRACURRICULAR in English
Cambridge English vocab. Кембриджский английский словарь. 2012