MAD KEEN (ON STH/SB)


Meaning of MAD KEEN (ON STH/SB) in English

( BrE , informal ) liking sth/sb very much; very interested in sth :

He's mad keen on planes.

Oxford Advanced Learner's English Dictionary.      Оксфордский английский словарь для изучающик язык на продвинутом уровне.