The Collaborative International Dictionary of English v.0.48:

Saucy \Sau"cy\, a. [Compar. Saucier; superl. Sauciest.]
   [From Sauce.]
   1. Showing impertinent boldness or pertness; transgressing
      the rules of decorum; treating superiors with contempt;
      impudent; insolent; as, a saucy fellow.
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            Am I not protector, saucy priest?     --Shak.
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   2. Expressive of, or characterized by, impudence;
      impertinent; as, a saucy eye; saucy looks.
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            We then have done you bold and saucy wrongs. --Shak.
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   Syn: Impudent; insolent; impertinent; rude.
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