MWC is used in personal ads, such as those featured on Craigslist. The phrase means "married with children" and often implies that any encounter must be discreet.
"Seeking sexy woman for discreet fun. I am 31/m and mwc.
by Lyrraaskavi July 02, 2009
Man with Cigarette
Guys stop fucking around in the pool im MWC right now
by The chin11 June 08, 2010