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1.
Named after the only place on earth where multiple ten foot long, two ton pieces of concrete need to stop people from driving into oncoming traffic.
Thank God there are Jersey Barriers in New Jersey, otherwise head-on collisions would be a staple of driving in that state.
by coopedup13 March 23, 2008
 
2.
Encountering fecal matter during anal sex typically resulting in discontinuing the act.
(a) There's been a terrible accident!
(b) Oh shit! What happened?
(a) Exactly! Tom ran into a Jersey Barrier. He was fuckin' Katie in the ass and she frosted his dick!
by jxmoth September 27, 2011