blow a hole in
blow a hole in (something)
1. To point out or expose the flaws in something. I hate to blow a hole in your argument against relocating, but the cost of living actually isn't that high there.
2. To take, use up, or deplete a large amount of money available in something, such as a budget, one's wallet, etc. The cost of repairing the car is really going to blow a hole in our savings. Tammy's private piano lessons are blowing a hole in my wallet!
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
blow a hole inruin the effectiveness of something.
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