Wiktionary
vb. 1 (context idiomatic English) to count the money taken by a business at the end of the day. 2 (context intransitive idiomatic English) to earn money
Usage examples of "cash up".
He walks by Cash up to the house, which holds (though we don't know it yet) the cause, and the object, of the rivalry between Darl and Jewel.
They've jacked up the price about fifteen percent, and they're asking for cash up front.
Each weekend then, during the final months of 1992, Scott gave Steve a packet of cash up to $20,000 at a time which Scott had harvested from plastic containers he had buried around the property on Overhulse Road.
He asked the manager personally to give him drawing facilities in cash up to £.
Jimmy said he could tap the Pension Fund for three million dollars to purchase the land and prefab material, and maybe they could pocket some cash up front.
If we lose the invoices, get them to re-submit, we free that cash up for a spell.