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Definitions by Willzers

used to describe an obnoxious nerd that thinks he/she is extremely hot and athletic. Usually very good at chemistry and physics.
The guy sitting beside Lesley in chemistry class is such a mkkoh.
mkkoh by Willzers April 6, 2010
Abbreviation: You're the Best.

Often used on Skype, MSN, iChat, and GoogleChat.
U.T.B. by Willzers April 6, 2010