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1.
(adj. informal)
broken, dis-functional, crazy, insane, makeshift, inefficient, awry, disarranged, chaotic

also known as "haywire", but has growing popularity amongst the tech/IT support community. Originated on the UW-Madison campus while having technical difficulties with a piece of old computer equipment.
Our stressed out boss has gone a-wire
by D-Sev August 17, 2010