( informal ) used to tell sb that a general statement they have just made is not true of you :
'We didn't play very well.' 'Speak for yourself!' (= I think that I played well.)
( informal ) used to tell sb that a general statement they have just made is not true of you :
'We didn't play very well.' 'Speak for yourself!' (= I think that I played well.)
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005