Obs. [f. BY- 2 b + SLIP sb.]

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  1.  A casual or trivial fault.

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1612.  Chapman, Widow’s T., V. Might it not concur with … your office … to wink a little at a by-slip or so?

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  2.  transf. A bastard. Cf. BY-SCAPE.

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a. 1670.  Hacket, Abp. Williams, II. (1692), 37. As Pope Paul the third carried himself to his ungracious by-slips (an Incubus could not have begot worse).

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