THE MOTHER OF (ALL) STH


Meaning of THE MOTHER OF (ALL) STH in English

( informal ) used to emphasize that sth is very large, unpleasant, important, etc. :

I got stuck in the mother of all traffic jams.

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