mystery(redirected from mysteries)
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a riddle, wrapped in a mystery, inside an enigma
That which is so dense and secretive as to be totally indecipherable or impossible to foretell. It is from a line used by Winston Churchill to describe the intentions and interests of Russia in 1939: "I cannot forecast to you the action of Russia. It is a riddle, wrapped in a mystery, inside an enigma; but perhaps there is a key. That key is Russian national interest." Many versions, variations, and appropriations of the quote, its structure, and its meaning have since been in use. Political campaigns make my head hurt. They're just a riddle, wrapped in a mystery, inside an enigma.
a mystery to you
something that you do not understand Why I'm telling you all this is a mystery to me.
See also: mystery
be another/one of life's great mysteries(humorous)
to be something that it is impossible for you to understand Why people write their names on the walls of public toilets is one of life's great mysteries.
n. any unidentified meat. (Collegiate.) There are no hints as to what this mystery meat is—except its strange pinkish color.