1 definition by anonymous949
a game invented in Piedmont, CA by the class of 2010, where a group of people camps out in a stranger's backyard until the family confronts you then you yell "PANDEMONIUM!" and scatter like rodents. Unless the family is visible in the window, in which case you bang on the window yelling and screaming "PANDEMONIUM!"
by anonymous949 September 18, 2007