haywire

Short definition from Wiktionary

Noun

1. 1
   Wire used to bind bales of hay.

Adjective

1. 1
   Roughly-made, unsophisticated, decrepit (from the use of haywire for temporary repairs).
2. 2
   Behaviorally erratic or uncontrollable, especially of a machine or mechanical process.

Verb

1. 1
   To attach or fix with haywire.