subs. phr. (old colloquial).—1.  A long thick finger. Whence (2) a penis of dimensions; and (3) a DILDO (q.v.).

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  1602.  SHAKESPEARE, Troilus and Cressida, v. 2, 56. Ther. How the devil luxury, with his fat rump, and POTATOE FINGER, tickles these together!

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