car card

noun

1. a sheet of cardboard bearing an advertising message for display, as in subway cars, buses, and trains.
2. cardboard coated on one side only.

Example Sentences

Fortunately I had my car card in my pocket so I was able to drive to the back yard and up on the patio to get close enough to my cell phone that I had laid on dining room table and then call my husband.

From New York Times

Famed also is the capacity of New Yorkers to endure the twice-daily pants-and-collar bum's rush from the guards�so much so that most of last week's New York City subway news roused no more impassioned attention than an advertising car card.

From Time Magazine Archive

Last week in Tampa, Fla. Barron Gift Collier,* famed organizer of car card advertising, virtually declared himself bankrupt.

From Time Magazine Archive

Donated was $250,000 worth of car card space.

From Time Magazine Archive