blow a hole in something

blow a hole in something

1. If an event blows a hole in something such as a plan, system or aim, it spoils it or reduces its effectiveness. Tropical storms have blown a hole in the company's oil and gas production targets. Richardson's decision to quit his post as chief financial officer has blown a hole in the company's plan for growth.
2. If something blows a hole in an opinion or argument, it shows that it is not true. This research has blown a hole in the myth that babies only smile because they are copying their parents. These figures blow a hole in the pretence that unemployment is under control.
3. To blow a hole in an amount of money means to reduce it a lot. Repairs to equipment have blown a hole in the firm's budget. Last year's storms and floods blew a hole in the profits of many insurance companies.
See also: blow, hole, something