haywire

nouns

wire for tying up bales of hay
haywire
is a type of (narrower)
ligament made of metal and used to fasten things or make cages or fences etc
wire

adjectives

informal or slang terms for mentally irregular
"it used to drive my husband balmy"
around the bend, balmy, barmy, bats, batty, bonkers, buggy, cracked, crackers, daft, dotty, fruity, haywire, kookie, kooky, loco, loony, loopy, nuts, nutty, round the bend, wacky, whacky
not functioning properly
"something is amiss"; "has gone completely haywire"; "something is wrong with the engine"
amiss, awry, haywire, wrong