go haywire
to start working in completely the wrong way

[TahlilGaran] Dictionary of Contemporary English ▲

go haywire
[informal]
if a system or machine goes haywire, it stops working as it should and starts working in a way that is completely wrong.
My CD player goes haywire every time my neighbour uses his cordless phone.

[TahlilGaran] English Idioms Dictionary ▲

go haywire
become damaged/broken or confused; to stop working properly
The plan went haywire when our directions became confused.

At first, things were going well but later our plans began to go haywire.

[TahlilGaran] English Idioms Dictionary ▲

go haywire
v. phr., informal Mixed-up, out of order, not in regular working condition.
My electric typewriter has gone all haywire; I have to call the repair man.

[TahlilGaran] English Idioms Dictionary ▲