Usually means that a person was either owned by 2 or more persons.
LULZ!! Chu Jus got swarmed!

I need more swarmjuice to swarm all these noobs.

by Jeypasta July 1, 2009
an army of people loitering in Mcdonalds or Tim Hortons. a word commonly used in Toronto. The swarm preys on fast food establishments seeking warmth in the winter time.

The common battle cry for the swarm is OOO THE SWARRM
employee 1- the swarm is coming,

employee 2- NO! theyl come and never leave
by Garret F September 6, 2011
An assault or mugging in which a group of people all attack a single individual at once.
Police are warning citizens not to go out alone after a recent wave of swarmings.
by RobinHood70_1 November 4, 2016
Move in large numbers.
The term swarm is applied to fish, birds and insects
A swarm of friends congratulated him.
by Vamsee September 25, 2006
The most op score streak in BO2. A swarm billions of hunter killer drones are sent into the sky and pwns every dumbass nooby enough to step outside.
Gamer 1: How the hell did he get a swarm already!
Gamer 2: Because your teammates are n00bs!
by iPwnDEEZn00bs January 17, 2013
when you and your friends all follow someone at the same time
by Peachislife January 11, 2016
-Euphoric state of delusional existence where interested parties of either sex exhibit behavior thru their actions and affections that outwardly and overtly demonstrate their desire to win the attention and affection of another. The collective efforts of a pattern of swarming can occasionally be a bit overwhelming to the receipent but generally not frightening, often flattering when done right but always ends in one or more of the swarmers getting an invitation to move on to the the level after swarming, (aka dating and more).
Example: Since her divorce Mary has been the pleasant receipent of an unusaual high degree of swarming activity. Mary is extremely flattered and assessing on a case by case basis her swarming offers.
Another example is: John who since he became a widower has decided that in his world there will be "No swarming allowed!" John wants to find his own next relationship.
by rightabouteverything January 16, 2011