Lingo
[buy] a lemon
to purchase an item, typically a product or object, that is defective, unsatisfactory, or of little value or use
The idiom "buy a lemon" originates from the early 20th century, where "lemon" was a slang term used to describe a faulty or defective vehicle, especially a used car. This phrase is used to describe the act of purchasing something, especially a big-ticket item like a car, that turns out to be faulty, defective, or of poor quality, leading to disappointment and regret.
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