I just learned a new and brilliant noun from urbandictionary.com.
The word is Ponzi Crawl:
A pub crawl that adds a new person to buy a round at each
location. Each new person is promised that they will get free drinks at
all the future bars if they buy this round. Obviously, whoever joins
the ponzi crawl last gets screwed!
As in: Let's get some suckers to buy us beer on a ponzi crawl this weekend!
(Editor's Note: While Ponzi Crawl treats symptoms of being victimized in a Ponzi scheme, it is not a cure. Consult a mental health professional before taking Ponzi Crawl.)
-- Deirdra Funcheon