A large collection or producer of content leading to masturbation,masturbation for extended periods of time
"Man I bought that new Sports Illustrated swimsuit edition magazine all night I was at jackcity," Teenage boy.
by CosmicKing March 03, 2015
when someone is extremely buff and ripped; usually refers to men.
"Damn that guy is so buff.. jack city!"
by ladywood December 14, 2011