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1. The birthplace of gangsterism 2. A city in Los Angeles County.
If you are not from Sylmar, may I respectfully suggest that you stay the fuck out of Sylmar.
by Throbbing Monster February 11, 2009
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Most ghetto place on earth. Home to the most rapists and criminals in all of California. Second in white trash only to Riverside. Known for many homosexual residents.
Idiot: Want to go cruise Sylmar tonight

SmartKid:DO you want to get shot and raped??? HELL NO. Lets chill in a nice neighborhood like Granada Hills
by Ejo1800 December 26, 2007
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