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

1.
membantah keputusan, memperdebatkan pilihan
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.
Tidak ada gunanya membantah keputusan sekarang, batas waktu sudah lewat.
•
The manager made his choice, so don't even try to argue the toss.
Manajer sudah membuat pilihannya, jadi jangan coba-coba membantah keputusan.