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Main Line Moms are overattentive, overinvolved, pampered, prissy JAP-spawning machines. They'll fight tooth and nail for their kids to get undeserved As and not just because they do all their school projects for them. They hire tutors for $80/hour when their kids get an A-, shuttle their kids and their lacrosse equipment and golden retrievers around in their Landrovers, and know all the gossip about their kids' classmates before they do. Main Line moms peak at college admissions and Bar/Bat Mitzvah seasons. They tread the line between passive-aggressive and aggressive-aggressive and if you're skeptical, try Nordstrom Petites during the semi-annual sale or getting a parking spot in Suburban Square. They adore gays but they lock their car doors when they see a black person. A true Main Line Mom keeps an immaculate home and garden, but only because of the coterie of immigrant gardeners, house-cleaners, and babysitters they employ. Main Line moms know that they deserve the world and so do their kids. And they won't let you forget it.
Lower Merion High School Student 1: My mom found out from Laura Cooper's mom who heard from Robin Goldfarb's mom that Rachael Silverberg gave Jake Weinstein head under the table at Adam Rubin's bar mitzvah.

Lower Merion High School Student 2: OMG, the Main Line Mom gossip network is out of control.
by xoxo_MLgg December 05, 2009
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The typical main line mom is the one who stays home and drives a big car so she can shuttle all her kids and their friends around. They usually have around 5 to 7 kids. During the day they go to the mall to blow their husbands money and chat with their friends on their blackberrys, but at night they go into homework mode and do all their kids homework for them so they can be the best. Every weekend they go to a party and get a local villa nova student to watch their kids while they go get wasted. During the summer they vacation at their house in avalon, new jersey or go to their country clubs and sit under the cabanas with the other main line moms and gossip. Typically a main line mom will raise their kids everything they want. Many main line moms are referred to as milfs.
Billy: dude your mom is the typical main line mom, she's such a milf!

Mike: dude thats so weird!

Billy: sorry, is she going to drive us to lax?
by Mainlinegal January 12, 2011
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