Any money in coin form, not paper. Most commonly refered to as “hard money” when people see loose change on the street. This occurrence prompts the people who saw the coins to drop what they’re doing, put their hands up, and say “hard monayy!” The origin of this action is unknown, but said to be good luck.

when you're hungover as shit after a spending a night drunk as a skunk

When you getting hard money! You working hard for yo Money!!