calling card

1. A small card containing one's contact information; a business card that may also be used for social purposes. I'm old school, so I like to hand out a calling card when I'm saying goodbye to a new acquaintance. Here, take my calling card and think about my offer, OK? Jim was sorry to miss you, but he gave me his calling card so we can reach him in the future.

2. An item left behind by someone to signify that they had been present in a particular location. It was evident that the string of murders were committed by the same man, as he left his calling card, a single red rose, at the scene of each crime. We have to leave something so they know the same people broke into their house again—it'll really freak them out! Hmm, what can be our calling card? Smashed mirrors seem to be this thief's calling card.

3. A special skill or talent that sets an individual apart from others. Primarily heard in US. His ability to paint such lifelike portraits really is his calling card in the art world. Of course Shelly wrote that scene—witty dialogue like that is her calling card. Infrared photography is really your calling card these days, huh? I could pick out your prints immediately.

a calling card

mainly AMERICAN

1. If you describe what someone possesses or has achieved as a calling card, you mean that it gives them an advantage. An Olympic gold medal is undoubtedly a pretty impressive calling card.

2. If you describe something as a calling card, you mean it proves that someone has been in a place. The hand continues to leave behind its calling card on everything it touches in the form of fingerprints. Note: In American English, a calling card is a small card printed with your name and other personal information, which you give to people when you visit or meet them.