What does Zerg/Zerging mean?

A term in World of Warcraft or other similar online games where groups of players, typically weaker as individuals, attack other players or player in an attempt to overwhelm by numbers. The term was coined from “Zerglings”, the smallest unit in the Zerg army, a faction from the strategy game, StarCraft (another title released by Blizzard, the same publishers of World of Warcraft). Zerglings are weak individually but they are employed in sheer numbers to devastate the enemy faction—the term comes from this same strategy.

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