( old-fashioned ) to defend or support sb/sth strongly
TAKE UP (THE) CUDGELS ON BEHALF OF SB/STH
Meaning of TAKE UP (THE) CUDGELS ON BEHALF OF SB/STH in English
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005