See smack one's lips
- (degree, informal) very.
- Aunt Bessy's Easter ham is always lip-smacking good.
- 2003. Susan Donovan. Take a Chance on Me. St. Martin's Press. page 313.
- She looked so lip-smacking good that he knew even a brief conversation would be a challenge.
- Only used for positive adjectives relating to taste, smell, and the mouth and, by extension analogous things.