Mount Saint Joseph Academy is a an all-girls private school in Flourtown PA with the prettiest, smartest, all-around greatest girls. The rival school gwynedd is made up of drunk sluts who lose their virginity as freshmen, while mount girls are of the classier variety. favored by both lasalle and prep, the mount owns, hands down.

prep/lasalle guy: "dude who's that girl?! she's so hot, i gotta talk to her!"
other prep/lasalle guy: "i don't know, she is really nice looking though - she must go to Mount Saint Joseph Academy!"
prep/lasalle guy: "dude who's that girl?! she's so hot, i gotta talk to her!"
other prep/lasalle guy: "i don't know, she is really nice looking though - she must go to Mount Saint Joseph Academy!"
by mountgrllll March 29, 2009
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A school of smart and cool girls. They all carry lululemon bags as lunch bags and are iPad kids. If you Snapchat a mount girl, you WILL receive a sideways snap.
Jessica goes to Mount Saint Joseph Academy
by Crazy738 March 10, 2022
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