(noun)Commonly mistaken for a flash mob that results in crime, a mobbery is when a large group ( usually composed of adolescents) enters a retailer or shop, swarms the vicinities, and shoplifts various items. The point of a mobbery is that the group is so large it is impossible to pinpoint a single culprit. The mobbery has recently ( Summer 2011) been on the rise.
Dude 1: Dude, did you catch the flash mob shoplifters on the news at 11?
Dude 2: Yeah, and it's called a mobbery. Hope they catch those thieves!