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The Most Popular Slang Word The Year You Were Born

3. 1948: Card-Carrying
This photo shows a group of card-carrying dog enthusiasts. Yes, 1948 is the year the slang term "card-carrying" was added to the dictionary. Today, we use the term to mean someone devoted to their cause or interest group. Originally, the term came from labor union membership. In the 1950s, it was often used to refer to members of the Communist Party.