Longman Dictionary of Contemporary English
Wiktionary
n. A diet that is extreme in its nutritional deprivations, typically severely restricting calorie intake in order to achieve rapid weight loss.
Usage examples of "crash diet".
Lloyd looked like a man who had embarked upon a radical crash diet.
There, she drank two weak vodka cocktails and took two Valiumspills she used to calm her metabolism after a two-month crash diet.
Next, she went on a crash diet of low-cal sodas, raw vegetables and canned tuna, and dry white wine, slimming down in less than a month from a size ten dress to a size six.
It hung hound-loose on a set of very good bones, inevitable result of the Galactic-record crash diet of the sort Ram had been subjected to.
The social value system may reward immediate weight loss through some crash diet program, but the body eventually outsmarts the strategy of the mind.
Erasees are not allowed to leave their new selves an inheritance of obesity or addiction, but often the body one wakes up in is the hasty contrivance of a crash diet.