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Someone who tries to pretend they're from Boston, but aren't. A Fake Bostonian is an out-ah-townah who possesses a Boston sweatshirt, says that they're from Boston, and has a varying degree of a Boston accent (usually they drop their r's, but don't have the vowels right).

Often seen using the water fountain instead of the bubblah, using their blinkers and calling them directionals, driving cautiously, putting rubber bands in their shopping carts instead of elastics in their carriage, and driving in traffic circles instead of rotarys.
Person: Can you put this in the shopping caht?

Bostonian: Fucking A, ah you a Fake Bostonian? Everyone around heah calls it a carriage.
by Bahstonian January 20, 2011
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