a.

1. 莽撞的；无礼的[（+with）]
   Don't be so saucy with me!

   别对我这么傲慢无礼！

2. 活泼的；调皮的
3. 【口】俏丽的，帅的
   She wore a saucy new hat.

   她戴着一顶漂亮的新帽子。

4. 【俚】淫秽的；有伤风化的

adj.

1. sexually suggestive in a light-hearted way.
2. cheeky or impertinent.
3. chiefly N. Amer. bold, lively, or spirited.