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: tear the place apart, leave the owner for dead, gangbang the waitress (1953+; the variant gang shag 1927+)
To belong to a street gang: What would you be doing if you wasn't gangbanging?/ To Mr Shakur, gangbanging (engaging in gang activities) was a career
[1960s+ Street gang; an adaptation of gang bang, changing the meaning of bang from the sexual to the generally violent]
The use of large numbers of loosely coupled programmers in an attempt to wedge a great many features into a product in a short time. Though there have been memorable gang bangs (e.g. that over-the-weekend assembler port mentioned in Steven Levy's "Hackers"), most are perpetrated by large companies trying to meet deadlines; the inevitable result is enormous buggy masses of code entirely lacking in orthogonality. When market-driven managers make a list of all the features the competition has and assign one programmer to implement each, the probability of maintaining a coherent (or even functional) design goes infinitesimal. See also firefighting, Mongolian Hordes technique, Conway's Law.