int. Obs. rare. An exclamation used to urge on hounds. Cf. STABOY, STEEBOY, STUBOY.

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1673.  (title) S’too him Bayes: Or some Observations upon the Humour of Writing Rehearsal’s Transpros’d.

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1692.  Christ Exalted, § cv. 85. In bringing out his Molossi and whaffling Whelps, and crying, Stoo Dogs, stoo.

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