Definition, Meaning & Synonyms
throw-a-spanner-in-the-works
idiomatic expression
/θroʊ ə ˈspæn.ər ɪn ðə wɜrks/

Definition
To cause a disruption or obstacle in a plan or process.

Examples
- The new regulations really threw a spanner in the works for our project timeline.
- Just when we thought we had everything planned, the unexpected weather threw a spanner in the works.

Meaning
This phrase indicates that something has been introduced that creates complications or difficulties, hindering progress or execution.

Synonyms
- create a setback
- hinder progress
- cause complications