학수고대
鶴首苦待 · waiting with a neck stretched like a crane
Waiting eagerly and impatiently.
When to useWaiting for a package, a reply, a holiday.
Examples
주문한 책이 오기만을 학수고대하고 있어.
I'm eagerly waiting for the book I ordered.
Korean life dictionary
22 short guides to words and manners