If you follow ecobasa.org long enough, you are probably already familiar with the concept of #SuspendedCoffee
Karma Kitchen does the same, only with a meal: that means your meal has been paid for by someone who came before you. Since it's a gift, you can't pay them back - but you can pay-it-forward to the next guests, allowing him/her to experience the same generosity and keeping the circle of giving going...
It started in Berkeley, USA in ...