Source : WordNet®

haywire
     adj 1: informal or slang terms for mentally irregular; "it used to
            drive my husband balmy" [syn: {balmy}, {barmy}, {bats},
             {batty}, {bonkers}, {buggy}, {cracked}, {crackers}, {daft},
             {dotty}, {fruity}, {kooky}, {kookie}, {loco}, {loony},
             {loopy}, {nuts}, {nutty}, {round the bend}, {around
            the bend}, {wacky}, {whacky}]
     2: not functioning properly; "something is amiss"; "has gone
        completely haywire"; "something is wrong with the engine"
        [syn: {amiss(p)}, {awry(p)}, {wrong(p)}]
     n : wire for tying up bales of hay