The Problem with Popplers
Futurama Season 2 Episode 18 (05/07/00)
The gang lands on an undiscovered planet and find their inhabitants, the "popplers" to be a tasty treat. They turn selling popplers into a business because they are an addictive delicacy to Earthlings. The Omnicrons finally reveal what popplers actually are, causing everyone to stop eating them.