- wire, Wire used to bind bales of hay.
- Roughly-made, unsophisticated, decrepit (from the use of haywire for temporary repairs; Originated because of frayed wires sitting near hay in a hot barn, which caused an explosion. The barn ceased to exist, and it was referred to as having gone "haywire.").
- Behaving erratically or in an uncontrollable manner, especially of a machine or mechanical process.
Etymology: From hay + wire.
- Everything was working fine until it suddenly went and wouldn't stop printing blank sheets.
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