The Collaborative International Dictionary
To boy a pig a poke
Poke \Poke\, n. [AS. poca, poha, pohha; akin to Icel. poki, OD. poke, and perh. to E. pock; cf. also Gael. poca, and OF. poque. Cf. Pock, Pocket, Pouch.]
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A bag; a sack; a pocket. ``He drew a dial from his poke.''
--Shak.They wallowed as pigs in a poke.
--Chaucer. -
A long, wide sleeve; -- called also poke sleeve.
To boy a pig a poke (that is, in a bag), to buy a thing without knowledge or examination of it.
--Camden.