cash fri
The days of the month when your paycheck arrives on a Friday. Can mean both Casual Friday or Cash Friday.
Let's get wasted tonight, its cash fri. Wearing t-shirt and jeans today, who cares? It's cash fri.
Biz-cash-fri
It's a shortened version of Business Casual Friday and it is when an office puts a policy in place where the workers can dress casual ie. jeans or shorts and t-shirt.
Did you see that guy who showed up on Biz-cash-fri wearing cargo shorts and a Hawaiian shirt?