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A notably more potent form of the exclamation"Jesus Christ!". Used to show extreme cases of shock, disgust, or awe.
John: Yo, I just hit your little sister with my car!
Bill: Jesus Christ on a cracker! Is the car ok?
by TGBen December 30, 2008
An exclamatory remark used to express surprise, distress, and outrage.
*In response to Matthew's CBT, Jack yells:
"Jesus Christ on a cracker!"
by Beau Weidman October 18, 2007