1 definition by monstercake

Top Definition
An acronym for "Masturbating In the Common Room Openly," typically the common room or lounge of a college dorm. Often phrased as "pulling a MICRO."
Richard pulled a MICRO when he was alone the other day, but he was so scared to get caught that he moved the fridge in front of the door. I don't think that's very open at all.
by monstercake December 07, 2010

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