jam city 

To swing from some structure and let the dead weight of one's body slam into another person.

While obviously derived from hanging on the rim after a forceful dunk and letting one's body dangle in the face of an opponent for added emphasis, this act is most often done in real life while swinging from a lofted bed or ceiling fixture to knock an unsuspecting friend off balance or, if extremely successful, to the floor.

While Brad was looking the other way, Burg jumped up and grabbed the top of the doorway and went jam city on him.

jam city by Fitterer July 16, 2008

jam city 

(n) A nice pair of breasts.

Her titties be so good, shit be like jam city.

jam city by E-money E-train April 4, 2007

Lake City Log Jam 

A group sexual event for males where 4 holes are cut into a pumpkin and fucked at once. The number of holes may span from a minimum of 3 to a maximum of 5, with 4 being the most comfortable. Afterward, the guy who finished last must carve the pumpkin into a jack-o'-lantern for display from his residence. This event is popular in southwest Colorado during autumn.

The Texan tourists rolled into town on their rental ATVs, unsuspecting of the upcoming weekend's festivities. Upon the sighting of a new jack-o'-lantern outside their motel door a couple days later, one of their wives excitedly questioned. The Texan man said, "Well darn tootin', Beatrice, I won that there at the Lake City Log Jam. Just a good ol' night out with the boys!"

Lake City Log Jam by Gio422 October 16, 2018

jamcity 

Basically the same as being Jammed(Under the influence of strong opiates). Just a different way to say it.

Jill: You fucked up dude?

Rob: Yah man, im right in the middle of jamcity.

"Just got back from jamcity"

"About to go kick it in jamcity"

jamcity by mothafuckinsaul October 26, 2011