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English definition of “off your trolley”

off your trolley

UK informal
behaving in an extremely unusual way or doing something very silly : Anyone who saw us doing this would think we were off our trolleys . Have you gone completely off your trolley? You'll never get away with it!Of unsound mindStupid and silly
(Definition of off your trolley from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

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