a wolf in sheep's clothing
 a wolf in sheep's clothing — see wolf, 1
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 Main Entry: clothing
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 a wolf in sheep's clothing — see wolf, 1
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 Main Entry: sheep
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 a wolf in sheep's clothing
  : a person who appears to be friendly or helpful but who really is dangerous or dishonest
   He turned out to be a wolf in sheep's clothing.
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 Main Entry: wolf