pig in a poke

名词 n.

英文释义

名词 n.
  1. Something whose true value is concealed or unknown and may be lower than expected by the buyer or claimed by the seller, especially something offered for sale. idiomatic

词形变化

词源

Reportedly from the practice of substituting a butchered cat, etc. for a suckling pig when sold in a sack at a market. Other theories circulate but all involve the purchase of a cat in a bag, where the buyer expected better.
poke refers to a bag or sack, and is related to pouch.
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