subs. (old).—1.  Extravagance in opinion; pretension or conduct.

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  1689.  DRYDEN, Epilogue to Lee’s The Princess of Cleves, 5.

        I railed at wild young sparks; but without lying,
Never was man worse thought on for HIGH-FLYING.

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  2.  (thieves’).—Begging; THE HIGH-FLY (q.v.); STILLING (q.v.).

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