expression, godan verb (-tsu)
smack one's lips; eat with relish
Idiomatic expression describing the action or sound of enjoying food so much that one smacks their lips, often used figuratively for savoring something.
彼は料理の美味しさに舌鼓を打った。
He smacked his lips at the deliciousness of the dish.
新鮮な刺身に舌鼓を打
I savor the fresh sashimi with relish.