Literally, without law, a condition of disintegration of a society into individual components resulting from the absence of conventions, shared perceptions and goals. A social system describable as a mere aggregate, the state of maximum social entropy.
The Brady Bunch befell anomie when that fat maid left for vacation. When she got back, she had to clean up Marsha's mung, castrate all the boys and kick out the littest one's boyfriend, and hide the ugly wife's body. After which she looks at the camera and shrugs to a big audience laugh.