For all those times you were stuck on the john hoping against hell for that number 2 to just slide out nice and easy and end your misery, this would be the expression used.

Inspired by deus ex machina or basically the idea of a god coming down from the sky to end the story.
"Where is a deuce ex machina when you need one? My meeting starts in five minutes!"

"OMG. It must have been by the sweet atoning grace of a deuce ex machina that I passed that shit."

Ex-Lax is the pill form of the deuce ex machina.
by shizzinator April 1, 2010
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