argue the toss
US /ˈɑːrɡju ðə tɒs/
UK /ˈɑːrɡju ðə tɒs/

1.
결정을 논쟁하다, 이미 내려진 결정을 따지다
to dispute a decision or choice that has already been made, especially when it is too late to change it
:
•
It's no use arguing the toss now, the deadline has passed.
지금 결정을 논쟁하는 것은 소용없어, 마감일이 지났잖아.
•
The manager made his choice, so don't even try to argue the toss.
매니저가 이미 결정했으니, 논쟁하려고 하지 마.