Cost a bomb American British informal slang
The idiom cost a bomb is a slang expression often used in informal conversation when buying something with a very high price. She attended the fashion show with the necklace costing a bomb.
Used to indicate something that is very expensive
Chanel is one of the high-quality clothing brands in the world, so all of clothes branding Chanel always cost a bomb.
We had to cancel our journey to Hawaii Island in this summer holiday since the flight tickets cost a bomb.
Almost apartments in this Landmark 81 - a super-tall skyscraper in Ho Chi Minh City - cost a bomb.
To change the price of something
Have a very high price
Be very expensive
To refer to a very high price.
The verb "cost" should be conjugated according to its tense.
To indulge unlikely or fantastical possibilities
He tends to cast beyond the moon, so his moniker is "dreamer".