A combination of deuce and euphoria. It is the feeling you get after finishing a large and extremely satisfying deuce.
As John returns from the bathroom, he says to a coworker. "Man. Talk about deucephoria! After dropping that crazy warlock, all I could do for a moment was enjoy it"

Or

"Man does that feel better! I almost passed out from the deucephoria"
by rfischer August 31, 2008
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