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A catholic secondary school located in the heart of Mississauga. The school reinforces catholic values every morning through prayer, although most of people aren't catholic or don't give a flying fuck. The cafeteria food is lacking, and made by European F.O.B's. The demographics include Black & Asian.... oh and the odd white person. The school is still awesome, because nobody wants to go to Mississauga Secondary School.
"Billy goes to St. Marcellinus, I heard it was a pretty rad school"
by PsycoClam February 01, 2013
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A school in Mississauga located in the safest suburb area meadowville village. The mans here think they live in the hood and think they are tough, even though they are rich...
"that man goes to st. Marcellinus lol what a fucking wasteman"
by Suburbwasteman123 December 18, 2017
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