https://www.dictionary.com/browse/lemon https://www.dictionary.com/browse/lemon Sense 5, slang: "a person or thing considered to be useless or defective" It's

https://www.dictionary.com/browse/lemon https://www.dictionary.com/browse/lemon Sense 5, slang: "a person or thing considered to be useless or defective" It's dated slang now.