smack your lips
US /smæk yʊər lɪps/
UK /smæk yʊər lɪps/

1.
입맛을 다시다, 입술을 쩝쩝거리다
to make a sound by opening and closing your mouth, especially to show that you are enjoying food or thinking about food that you want to eat
:
•
The children were smacking their lips at the sight of the birthday cake.
아이들은 생일 케이크를 보고 입맛을 다셨다.
•
He smacked his lips, imagining the delicious meal.
그는 맛있는 식사를 상상하며 입맛을 다셨다.