Surround sound made from scavenged parts of other stereos/soundsystems with a jimmy-rigged base unit
Usually not functional as actual surround sound but loud as hell and subject to spasms in connections resulting in horrible loud sounds
Pirate - Hey you coming over to watch the Matrix this weekend?
Mark - No way man, last time your shipwreck surround sound made spasticated tuba sounds all night and we had to keep stopping the film to adjust the cables. And you don't understand the Matrix like I do, no one does