http://en.wikipedia.org/wiki/Pseudoreligion
James Carmine, chair of Carlow University's philosophy department, proposes a three-pronged test to distinguish "authentic" religions from pseudoreligions:
Any religion lacking a guiding coherent theology is a pseudo-religion.
Any religion entirely self referential is a pseudo-religion.
Any religion whose only fruit is adherence to itself is a pseudo-religion.
Pseudoreligion, or pseudotheology, is a generally pejorative term applied to a non-mainstream belief-system or philosophy which is functionally similar to a religious movement,
typically having a founder, principal text, liturgy and faith-based beliefs.