1. Possibly the most extreme, blasphomous term to use when one is surprised and/or outraged in the english language.
2. Used as a term to say something random but incomprehensible for a few seconds to the person the term is directed to.
Situation 1:
Somone busts into a room with an AK-47 and shoots the person right next to you.
Your response: Jesus fucking Mary doggystyle Christ!
Situation 2:
Johnny: Sooooo...
Mike: hmm....
Chris: yeah...
Dalton: JESUS FUCKING MARY DOGGYSYLE CHRIST!
Johnny: wtf happened?
Mike: oh my stars
Chris: lollerpops
This combination of words refers to a moment in time when you are suddenly overwhelmed, hurt, in disbelief, or just plain in the Christmas spirit. It can replace several profane words to create a tasteful way of expressing your feelings.
"Jesus Christmas, Jeff just threw up all over that chick!!"
"I think I broke my pinky toe... Jesus Christmas!!"
"Jesus Christmas that's a big present under that there tree Uncle Bernard!!"