Short for Morning Wood. The erection males find on themselves upon waking up in the morning.
I must have had a nice dream, I totally woke up with MoWo.

by MasterMack September 25, 2007
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To completely fuck something up so bad that a large number of people show great displeasure with you.
Damn Ted, you really Mowo'd that one...didn't ya?
by angelnine9 May 5, 2009
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