a group of people mobilized by social media to meet in a public place for the purpose of doing an unusual or entertaining activity of short duration: The flash mob brought wide smiles to the faces of commuters waiting for their train.
a group of teenagers who have contacted each other by cell
phone and social media and gather in an area to trash it or to mug and beat
verb (used with object), flash mobbed, flash mobbing.
to crowd around (a place or person) in a flash mob: Dancing teenagers flash mobbed the store.
to commit violence against (a place or person) in a flash mob: The mayor imposed a curfew on all males under the age of 18 after two blocks of downtown Philadelphia were flash mobbed and severely damaged.
verb (used without object), flash mobbed, flash mobbing. 5.
or take part in a flash mob.
Origin: 2000–05; flash Related forms
in the sense of ‘quick'; on the model of smart mob
flash mobber, flash mobster, noun