1 definition by 5thgeneration

The rich suburbs out side of Philly. Characterized by the R5 SEPTA line and Rt30. Became popular during the turn of the century as a summer retreat for rich "old money" philadelphians. Still home to some of the richest people in the country but increasingly over run with "new money". Lots of catholics in the area, especially in Berwyn or Paoli, because the catholics were brought out from the city as servants for the old money. Now everyone knows who you are if you were born here, and if you weren't they may not trust you.
Main Line also refers to a dying way of life. Main Liners (old money) would marry one another and used connections to keep their money and prestige. Now most old money names have no money left. But they still consider them selves above new money.
Also home to some of the finest public and private school in the country and numerous colleges.
Look at all the main liners here.
by 5thgeneration April 28, 2011
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