saucy

Short definition from Wiktionary

Adjective

1. 1
   Similar to sauce; having the consistency or texture of sauce.
2. 2
   Impertinent or disrespectful, often in a manner that is regarded as entertaining or amusing; smart.
3. 3
   Impudently bold; pert.
4. 4
   Sharp; pungent; piquant.
5. 5
   Mildly erotic.