An acronym for the J-Body.org, A Website for Sunfire and Cavalier drivers to post random topics bitching about each other, their cars, the lack of aftermarket parts, the lack of GM support/warranties, and their lack of social lives. see www.jbody.org.
"dude, did you see that guy on the JBO who said he could beat my civic with his base model cavalier?"
The instance when when someone cuts someone else out of their life by blocking all methods of communication. Used in such situations as ex-boyfriends/girlfriends or cuttingties with a friend.
Jbo: "I came home and tossed him off my bl and blocked his ass."
Me: "He's just been Jbo'd."