to make sb remember sth by repeating it a lot of times :
We had it drummed into us that we should never talk to strangers.
to make sb remember sth by repeating it a lot of times :
We had it drummed into us that we should never talk to strangers.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005