Open Vagina Shut Mouth - related terms are OASM (open asshole shout mouth - for homosexuals) and GHSM (get hard shut mouth - for straight men). When people talk too much and put out too little, OVSM is the corrective term.
girl 1 - "My boyfriend just doesnt understand me, i told him how i felt about {x situation} and he just didnt understand my feelings! He never takes the time to really listen to me, he brought me flowers the other day but they were petunias and i just HATE petunias! We have been together for 3 years and i cant believe that..."
girl 2 - "OVSM!"
girl 2 - "OVSM!"
by sometimessusan October 1, 2010