throw a wrench in the works

1.
USUKCanadaAustraliageneralinformalcolloquial
- To cause a disruption or create an obstacle that prevents a plan, project, or operation from proceeding as intended.
- To introduce an unforeseen problem that complicates or derails ongoing efforts.
2.
USUKCanadaAustraliageneralinformalcolloquial
- To intentionally sabotage or hinder someone else's plans or activities.

Examples:

No examples available.