definition of
haywire

[1] #1 haywire n. wire for tying up bales of hay. wn

[2] #2 haywire s. [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] informal or slang terms for mentally irregular; "it used to drive my husband balmy". wn

[3] #3 haywire s. [amiss, awry, wrong] not functioning properly; "something is amiss"; "has gone completely haywire"; "something is wrong with the engine". wn