happy as a clam (to be as) [exp]

Meaning:

• to be so happy because something good has happened to you.

Examples:

1. I won the lottery and I’m as happy as a clam.
2. She has visited her mother after two weeks. Now she is as happy as a clam.
3. After hearing she’d gotten the job, Sarah was as happy as a clam for the rest of the day.
4. The children were as happy as clams playing on the beach under the sunny sky.
5. With a good book and a cozy chair, he felt as happy as a clam on a rainy afternoon.