a. slang. [Of fanciful formation.] Intoxicated; drunk.

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1874.  Slang Dict., 307. Squiffy, slightly inebriated.

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1884.  Mrs. C. Praed, Zéro, viii. At night she is generally a little squiffy.

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1894.  G. W. Appleton, Co-Respondent, ii. 42. You’re a bit squiffy, aren’t you, Dick? No, I’m as sober as a waterspout.

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