Definition of cat–and–dog

  1. 1 :  resembling or having the character of the proverbial antagonism of dogs and cats: a :  quarrelsome, inharmonious they led a cat-and-dog life together — Ellen Glasgow b of a fight :  malicious and incessant the cat-and-dog fight among the early wire companies — F. L. Mott

  2. 2 :  being or consisting of cheap or questionable securities :  highly speculative cat-and-dog stocks are swinging through sensational gyrations—rising 100 percent in ten days, then collapsing — Sylvia F. Porter

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capable of being understood in two ways

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