( informal ) used instead of 'yes' to emphasize that sb has guessed sth correctly or made a good suggestion :
'Are you nervous?' 'You bet!'
( informal ) used instead of 'yes' to emphasize that sb has guessed sth correctly or made a good suggestion :
'Are you nervous?' 'You bet!'
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005