Sauciest

adjective

1. Similar to sauce; having the consistency or texture of sauce.
2. Impertinent or disrespectful, often in a manner that is regarded as entertaining or amusing; smart.

   "She is a loud, saucy child who doesn't show a lot of respect to her elders."

3. Impudently bold; pert.
4. Sharp; pungent; piquant.
5. Mildly erotic.

   "I enjoyed the dancing, but my wife found it a little too saucy."