in the bag

US /ɪn ðə bæg/
UK /ɪn ðə bæg/
"in the bag" picture
1.

確実な, 保証された

certain to be achieved; assured

:
Our victory is in the bag.
我々の勝利は確実だ
With that last goal, the game is in the bag.
あの最後のゴールで、試合は確実だ