Used in gaming for a attack of many unskilled units on a difficult target.
From "
The Last Starfighter" a movie from 1984 which had a villian named "Xur" or "Zur". (The villian utilized massed forces which would swamp defenders and the heros could defeat in numbers) The benefit of this strategy is a superior unit or units can only eliminate a certain number of attackers at the same time allowing enough of the attackers to survive, do damage and
hopefully defeat
the defender or get around it. A classic "horde" or "wave" type attack.