Got A Bag 

To obtain a large amount of money.

"I got a bag, but I ain't braggin'/I know these niggas mad because i'm swaggin'" - Ballout, "I Got a Bag"

Got A Bag by Earnestp August 5, 2017

We've Got This in a Bag 

What you say to your teammates when you are about to lose in a game. Usually followed by a lot of points, resulting in winning, unless you are playing golf. Then you get lower scores.

Team 1 and Team 2 are playing basketball. Team 2 is losing by 2 points. (4 basketball points.)
Team 1: Ha! Try winning now, Assholes.
Team 2 (one person to the other): Don't worry. We've got this in a bag.
Team 2 proceeds to make 6 basketball points. They win the game.

We've Got This in a Bag by TheOriginalHobo April 6, 2013