Originally Posted by fatfoo

Definition from http://en.wikipedia.org/wiki/Jesus_H._Christ

Jesus Christ vs Jesus H. Christ

Jesus H. Christ is an example of slang serving as a profanity. The expression can be used in an angry, wry, sarcastic, cynical, exasperated, or even joking tone. The expression implies that the Christ is a surname rather than a title. (Christ comes from the Greek christos meaning "anointed.")