A allegation, slander, false statement, guess, or ridiculous comment. To attempt to pass off a statement as a fact through stating that it came from a snapple cap.
It is often best used on gulliblepeople whom will believe anything.
Examples include:
Slanderous
Snapple Fact # 69: That girl is a total bitch.
Ridiculous
Snapple Fact # 69: The sky is actually red, our eyes just allow us to see it as blue.