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1.
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
 
2.
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