The condition in which a large number of people with no real direction or purpose suddenly find themselves in conflict with each other, and simultaneously decide - subconsciously - to meet in the middle, which somehow manages to only make things exponentially worse.

Easily prevented by situational awareness, which is generally checked at the door when entering consumer supercenters, convention halls, and other buildings/spaces which see generous amounts of human traffic.

The sort of thing that might happen at a 6-way intersection if the traffic light were broken.
"Everything was cool, until someone started running. Then other people started to panic and they started running, and no one really knew which way they were even supposed to be running; eventually it just turned into one big Wal-Mart Clusterfuck.

I don't think anyone even knows what that first guy was running from."
by comorbid June 12, 2010
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