charliecard means A stored-value smart card used by passengers to pay their fares on the Massachusetts Bay Transportation Authority. Lexicurio rates it Rare gem — a strength score of 84 out of 100.
Etymology
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.
noun
- A stored-value smart card used by passengers to pay their fares on the Massachusetts Bay Transportation Authority.