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lemon

noun (STUPID PERSON/THING)
 
 
/ˈlem.ən/

Definition

[C] UK informal a very silly person: I felt such a lemon when I discovered I'd missed my appointment.Stupid and silly people [C] mainly US informal something that does not work: Only one of his inventions turned out to be a lemon.FailuresAccidents and disastersHigher and lower points of achievement
(Definition of lemon noun (STUPID PERSON/THING) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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