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1 definition by SarniaDrew

The monkey that, when you have drunk rather too much, breaks into your room while you're asleep, steals all your cash, punches you in the face and takes a shit in your mouth. Results in morning shit breath, no cash and a blinding headache.
Jesus...I feel like crap...I think I had a visit from the midnight monkey last night, I should never have drunk that last car bomb.
by SarniaDrew April 08, 2010