a pig in a poke


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a pig in a poke

something that you buy without knowing if it is good or not When you buy a used car, you may be getting a pig in a poke.
Etymology: based on an old meaning of buy a pig in a poke (buy a pig in a bag), which you would buy without first seeing it
See also: pig, poke

a pig in a poke

something that you buy or accept without first seeing it or knowing what it is like, with the result that it might not be what you want Clothes from a catalogue are a pig in a poke. You can't feel the quality of the fabric or know if the clothes will fit.
See also: pig, poke