Nab that biscuit
To nab that biscuit is to get the good stuff, like the last soda at the vending machine. It’s a way to say you got what you wanted and you're not sorry about it.
He said, 'Nab that biscuit, I'm not going home.'
She texted, 'Nab that biscuit, I’m coming over now.'
At the gym, he yelled, 'Nab that biscuit, you're crushing it.'