Answer: mobs

AnswerCrossword Clue
MOBSSale scenes
MOBSLivid crowds
MOBSVolatile masses
MOBSAngry crowds
MOBSGreets enthusiastically, in a way
MOBSPitchfork-wielding groups
MOBSPacks
MOBSAfter-Christmas sale shoppers, e.g.
MOBSAttacks riotously
MOBSLawless groups
MOBSGroups of rioters
MOBSHerds of humans
MOBSUnruly throngs
MOBSMasses
MOBSGangs
MOBSCrowds.
MOBSOutfits, such as Murder, Inc.
MOBSCrowds
mobscrowd, esp. a disorderly one
mobsMOB, to crowd about
mobsto crowd or crowd around
MOBSRampaging groups
MOBSDisorderly bunches
MOBSCompletely overruns
MOBSCrowds with a mission
MOBSLawless crowds
MOBSMurder, Inc., etc.
MOBSGreets overenthusiastically
MOBSThey're hard to control
MOBSDons lead them
MOBSRabbles
MOBSDisorganized crowds
MOBSGreets with too much enthusiasm
MOBSDestructive crowds
MOBSRiot participants
MOBSFlash ... (impromptu gatherings)
MOBSRulers of ochlocracies
MOBSRiotous groups
MOBSOut-of-control crowds
MOBSHordes