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1.
OWM
OWM is short for old white men.
Republicans have traditionally been a party of OWMs.
by T Wade June 17, 2005
 
2.
stands for Obsessed With Mirrors. generally used to describe someone obsessed with looking at themselves in a mirror.
"Bro, im done with her. she's so O.W.M
by Slim Nerdy Banana Squirrel May 22, 2014