Throw a monkey wrench into the works Meaning in English
expression
Definition
To cause a disruption or unexpected problem that stops or complicates a process or plan.
Usage & Nuances
This is an informal, idiomatic US English expression. Used for both intentional and accidental disruptions. Commonly shortened to 'throw a wrench in the works' or 'throw a wrench into something.' Rarely used in the UK; 'put a spanner in the works' is the British equivalent.
Example Sentences
The rain threw a monkey wrench into the works for our picnic plans.
basic
If you change the schedule now, it will throw a monkey wrench into the works.
basic
A missing document can throw a monkey wrench into the works of the whole process.
basic
We were almost done, then the power outage threw a monkey wrench into the works.
natural
Her sudden resignation really threw a monkey wrench into the works at the company.
natural
I hate to throw a monkey wrench into the works, but there’s a big problem we need to fix.
natural