A ficticious location. Plans can be made to go there, however most trips are taken without prior notice. Once you arrive, hilarious stories and pictures are some of the souvenirs you take with you when you leave.
Also associated with your life being in shambles.
"I can feel it, I am heading to shambletown tonight"
"Becky after that drink, you are going to be in shambletown."
"We're leaving Mandangos and heading straight to shambletown."