If there is pandemonium in a place, the people there are behaving in a very noisy and uncontrolled way.
例句
There was pandemonium in court as the judge gave his summing up...法官做總結時，法庭里一片混亂。Pandemonium broke out as they ran into the street shouting.他們叫嚷著沖到大街上，大街上頓時亂作一團。
英漢詞典釋義
n.
大混亂的場面, 嘈雜, 無序的地方
The whole lobby was a perfect pandemonium, and the din was terrific.整個門廳一片嘈雜，而且喧囂刺耳。