A fork of Rural Dictionary
A public works project that is a huge waste of taxpayer money that turns out to be either a scam, a huge waste of money or both.
Comes from the Simpsons episode "Marge vs the Monorail" where Springfield spent all their money on a monorail only to have it fall apart on its maiden voyage.
The sky lift system cleveland put in fell apart after a week. That thing was a real Springfield Monorail.