'haywire' definitions:

Definition of 'haywire'

(from WordNet)
adjective
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, haywire, kooky, kookie, loco, loony, loopy, nuts, nutty, round the bend, around the bend, wacky, whacky]
adjective
Not functioning properly; "something is amiss"; "has gone completely haywire"; "something is wrong with the engine" [syn: amiss(p), awry(p), haywire, wrong(p)]
noun
Wire for tying up bales of hay

Synonyms of 'haywire'

From: Moby Thesaurus