1 definition by WM995
A town in Marin County just north of the Golden Gate Bridge. The home of well-off whole foods shoppers and shit faced teenagers who think they're ghetto.
Typical Mill Valley Teenager:"Yeah, like dude, I got hella wasted last nightttt, and then I went to the best buy in marin city.. I'm so bad ass."
A normal person in Marin: "dude just shut up."
by WM995 Dec 28, 2010 add a video