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1.
A port town bordering both Welland and Wainfleet. Known for it's lakefronts, canals and terrible whore-schools. It's high schools/occupants are often referred to as:

"Pot high" (Port Colbourne High School)
"Lake Shore whores" (Lake Shore Catholic Secondary)

Port Colbourne is generally looked down upon by neighbouring cities/towns.
1. "You must be from Port" (referring to a degenerate)
2. "Dirty like Port Colbourne"
by Steerky March 17, 2011