“To go haywire” also means to start malfunctioning or failing to operate normally. We often use this expression for machines that don’t work as they should.

For example, let’s say we are visiting a peanut butter factory. A machine used to pump peanut butter into jars suddenly goes haywire. It squirts peanut butter everywhere – on the floor, on walls and on factory workers. Soon the whole area is covered with the tasty, but sticky food! So, the machine is not only broken, it made a huge mess.

“Haywire” can also mean to become out of control. When a process fails to work as planned, you can also say it ran amok. This expression is more formal. Here is an example of this meaning of “haywire.”

“Urgh. Plans for my outdoor party just went haywire! The supermarket can’t bring the birthday cake. The musicians refuse to play. There’s no place to leave a car because of unannounced street repairs in front of my house. Oh … great. And it’s going to rain. It’s going to rain hard!”

But how did this simple farm word come to mean “go wild”? Language experts say there are two stories that help explain where this meaning came from.

As we said earlier, Americans use haywire to describe a state of disorder, extreme messiness – in other words, a situation where everything seems to be going wrong.

Years ago, farmers used haywire to temporarily fix a damaged fence, gate or barrier. But the wire was never a good choice for permanent repairs because it breaks down easily. The metal iron turns reddish brown and wears down when attacked by oxygen in the air or water. It other words, it rusts!

This fact, however, did not stop people from using it for repairs. As a result, many fences and buildings where lots of wire were used for repairs look messy. They have gone haywire.

Another story about “haywire” comes from the material itself. When you cut tightly wound wire, you should do so carefully. It can suddenly spring back at you like a snake. It can circle your body and then stab you with its sharp ends. This can happen quickly, often catching a person off guard.

Word experts may not agree on the origin. But they can agree that anything that has “gone haywire,” has gone crazy or is a big, hot mess!.

hay – n. grass that has been cut and dried to be used as food for animals
bundle – n. a group of things that are fastened, tied, or wrapped together
berserk – adj. to become very angry, crazy, and violent : to become very excited
jar – n. a widemouthed container made typically of earthenware or glass
squirt – v. to come forth in a sudden rapid stream from a narrow opening
mess – n. a very dirty or untidy state or condition — usually singular
amok – adv. in a wild or uncontrolled manner — used in the phrase run amok
off guard – verbal phrase in an unprepared state : not ready
hot mess – n. informal : something or someone that is emphatically a mess: such as something in a state of extreme disorder or disarray