The term cafeteria Catholic is applied to those who assert a Catholic faith yet dissent from one or more doctrinal or moral teachings of the Catholic church or who are viewed as dissenting by those using the term. Examples include Catholics who are accused of dissenting from any or all of the Church teachings on human sexuality and things related (the so-called "pelvic issues")—i.e., what it has to say about abortion, birth control, divorce, premarital sex, masturbation, pornography, prostitution, and/or the moral status of homosexual acts.
An early use in print of "cafeteria Catholicism" appears in Fidelity, 1986.
"Cafeteria Catholicism" allows us to pick those "truths" by which we will measure our lives as Catholics. ... "Cafeteria Catholicism" is what happens when the stance of Protagoras, regarding man as the measure of all things, gets religion — but not too much.
A different distinction, in the term "communal Catholicism," had already been used in 1976.
The term is most often used by conservative Catholics critical of progressive Catholics. It is less frequently applied to the conservatives who dissent from other Catholic moral teaching on issues such as social justice, capital punishment, the care of the environment or just war. The term has been in use since the issuance of Humanae Vitae, an official document that propounded the Church's opposition to the use of artificial birth control and advocates natural family planning.