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Short for emo, homo, lesmo, bimo, keemo, benson leiMO, MOnster, and other words with MO in it. Common examples are when Larry, Raymond, Crystal, Jon, Alvin, Simon, Jeffrey, Benson, RayLi, RayZ, Mary, Iris, Doris, and Ryan, are being dense. People that are MO usually do stupid things like yell out car windows screaming "WEST SIDEEEEEEEEE." Also, MO people are oblivious that they are mo, which makes them even MORE mo. This is a word that originated in San Francisco. UH HEEEEEEEEEEEe
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