lip

noun

1. 1

   either the outer margin or the inner margin of the aperture of a gastropod's shell

2. 2

   the top edge of a vessel or other container

3. 3

   either of two fleshy folds of tissue that surround the mouth and play a role in speaking

4. 4

   an impudent or insolent rejoinder

   don't give me any of your sass

5. 5

   (botany) either of the two parts of a bilabiate corolla or calyx