CharlieCard

From Charlie +‎ card, named after a fictional character in a folk song who cannot leave the Boston subway system because he cannot pay the five-cent surcharge required to leave the train.

CharlieCard (plural CharlieCards)

1. A stored-value smart card used by passengers to pay their fares on the Massachusetts Bay Transportation Authority.

• CharlieTicket
• EasyRider
• EZ-Link
• GTA Farecard
• MetroCard
• Multivia
• Octopus
• Oyster card
• Readycard
• SmartRider
• SmarTrip
• Suica
• Touch 'n Go
• Translink
• MBTA's official CharlieCard site