1.
1.) An exclamation bound to get attention, no matter what the surrounding situation due to its many syllables, and the fact that it ends with " yo".
2.) A way to say whoah, crap, holy crap, shit, fuck, damn, etc. without being offensive, but well expressed in its own right.
1.) ::guy walks in door:: "Judas Freaking A Priest, Yo!"
Other guy: What's wrong?
Guy: I just got off the phone with my mom. Dad's in jail again.
2.) ::the back of some guy's house falls off::
Some Guy: Judas Freaking A Priest, Yo!
See golly, gosh, crap, oh crap, holy crap, shit, oh shit, holy shit, fuck, fucking a, fuckin' a