I’m somebody who has food stamps. It’s like a debit card that the government will load with money monthly. You can only use it to purchase food items. If your total bill at the store is $40, $20 of food and $20 of other household goods, then paying with the food stamps card will pay for the $20 of food. You’ll still have to pay the $20 of other goods with your own money.
As somebody who knows nothing about this, I find wankel hilarious. Right up there with cockburn valves.