Liar Liar Pants On Fire is a phrase that children like to scream at each other whenever they think the other is lying. They also like to scream it at adults who tell them stories about fairies. It is an overall stupid thing to say, since if your pants actually caught on fire when you lied, more politicians would be dead.
Kid: Liar Liar Pants On Fire!
Adult: Shut the fuck up.
A Jewish Christian is a Jew who also believes Jesus is the messiah. Jewish Christians find their faith very hard to explain to most people.
Jewish Cristian: Hi, I'm a Jewish Christian!
Guy: A what?
Jewish Christian: A Jewish Christian! I am Jewish, but I believe Jesus is our messiah!
Guy:... So you're Jewish... and Christian?
Jewish Christian: Yes.
Guy: ... Whoa.