Adding your name to a card, with or without the knowledge of the person who bought the card, to avoid having to purchase a card of your own.
Joe: Hey man, did you get Stacey a birthday card?

Jim: Fuck, I forgot. Looks like we'll be card pooling again.

Joe: You're a dick. You've signed every card I bought except the one for my parents anniversary.

Jim: I signed that, too.
by Adgo September 6, 2009
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