The idea is likely for neighborhood restaurants. Get them to all collaborate and have a free appetizer or dessert coupon [or $5 off or $10 off]. When you go to one restaurant, with your check at the end of the meal you get a coupon for one of the other neighborhood restaurants to explore. Ditto after that meal you get another coupon. Kind of a ‘pay-it-forward’ idea. These coupons likely expire in a specific month, so that they give some time urgency to the consumers to use them.
It should result in bringing in some new faces from the neighborhood to try out the foods at these restaurants. Maybe the coupon has some recommendations on the back of it by area residents.
I’m going through the past few years of ideas that are in my moleskine notebooks. Some of the ideas are really lacking, but might give you an idea? All of these ideas are yours for the taking. Don’t forget my archive of 100+ web startup ideas.