1) ADJ: ADJ n A card-carrying member of a particular group or political party is an official member of that group or party, rather than someone who supports it.

[be V-ed] I've been a card-carrying member of the Labour party for five years.

2) ADJ: ADJ n (emphasis) If you describe someone as, for example, a card-carrying feminist, you are emphasizing the fact that they believe strongly in and try to carry out the ideas of feminism.

[be V-ed] ...a card-carrying Christian.

English dictionary. 2008.