What is the meaning of Smack_one's_lips?

A distinct flavor, especially if slight.

A slight trace of something; a smattering.

Heroin.

A form of fried potato; a scallop.

To get the flavor of.

To have a particular taste; used with of.

To indicate or suggest something; used with of.

A small sailing vessel, commonly rigged as a sloop, used chiefly in the coasting and fishing trade and often called a fishing smack

A group of jellyfish.

A sharp blow; a slap. See also: spank.

The sound of a loud kiss.

A quick, sharp noise, as of the lips when suddenly separated, or of a whip.

To slap or hit someone.

To make a smacking sound.

(especially outside of North America) To strike a child (usually on the buttocks) as a form of discipline. (normal U.S. and Canadian term spank)

To wetly separate the lips, making a noise, after tasting something or in expectation of a treat.

To kiss with a close compression of the lips, so as to make a sound when they separate.

As if with a smack or slap; smartly; sharply.

smidgeon, piece, small bit

to smack

Source: wiktionary.org