( informal ) used to tell sb strongly not to do sth :
'I'll tell her about it.' 'Don't you dare!'
Don't you dare say anything to anybody.
( informal ) used to tell sb strongly not to do sth :
'I'll tell her about it.' 'Don't you dare!'
Don't you dare say anything to anybody.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005