Д104
И ДЕЛО С КОНЦОМИ ДЕЛУ КОНЕЦ both
coll (sent
these forms onlyusu. the concluding clause in a compound or complex sent
usu. refers to the completion of
sth. in the future
fixed WO and then everything will be finished
and that will be the end of it (the matter, the business)
and that will be that (it )and it will all be over(in limited contexts,
usu. after
imper and (left) leave it at that.