Definition, Meaning & Synonyms

throw a monkey wrench into

idiomatic expression

/θroʊ ə ˈmʌŋki rɛntʃ ˈɪntu/

Definition

To disrupt or obstruct a plan or process by introducing an unexpected problem.

Examples

When the manager decided to change the project timeline, it really threw a monkey wrench into our team’s preparations.
She was planning the event for months, but the last-minute cancellation threw a monkey wrench into all her efforts.
His unexpected resignation threw a monkey wrench into the company’s plans for expansion.

Meaning

The phrase means to cause difficulty or interference in a situation that is otherwise running smoothly. It often refers to actions that unintentionally or intentionally hinder progress.