I DON'T MIND IF I DO


Meaning of I DON'T MIND IF I DO in English

( informal ) used to say politely that you would like sth you have been offered :

'Cup of tea, Brian?' 'I don't mind if I do.'

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