Once and for all
Meaning: decidedly, if you do something once and for all, you do it now so that it does not have to be dealt with again
Example: Let's get to the bottom of this matter once and for all! You must quit smoking once and for all.
Выучи грамотный разговорный английский до уверенного владения всего за 9 месяцев по системе естественного усвоения иностранных языков. Жми!
Example: Let's get to the bottom of this matter once and for all! You must quit smoking once and for all.