51 entries under idiom topic. ×

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alarm clock(expression, instantaneity)
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analog clock(expression, instantaneity)
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atomic clock(expression, instantaneity)
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being a pistol(expression, zany, comical, schtick)
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beyond all reason(expression, silly, foolish, unwise)
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chaparral cock
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clock radio(expression, instantaneity)
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cuculiform bird
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digital clock(expression, instantaneity)
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grandfather's clock(expression, instantaneity)
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half wit
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know ins and outs(expression, zany, comical, schtick)
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know the answers(expression, zany, comical, schtick)
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know the score(expression, zany, comical, schtick)
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male donkey
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not difficult
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nutty as a fruitcake(adjective, sane)
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off one's head(adjective, sane)
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out of all reason(expression, silly, foolish, unwise)
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pendulum clock(expression, instantaneity)
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APASmart Define. (2016). cuckoo thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/cuckoo/thesaurus/synonyms
ChicagoSmart Define. 2016. "cuckoo thesaurus" https://smartdefine.org/cuckoo/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2016, cuckoo thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/cuckoo/thesaurus/synonyms>.
MLASmart Define. "cuckoo thesaurus" 30 March 2016. Web. 26 September 2026. <https://smartdefine.org/cuckoo/thesaurus/synonyms>