The phrase "of a lifetime" is often used to emphasize the exceptional rarity or significance of an experience, opportunity, or event. Here are a few more examples of how this phrase is used:

1. "A trip of a lifetime"
2. "A chance of a lifetime"
3. "A vacation of a lifetime"
4. "An experience of a lifetime"
5. "A concert of a lifetime"
6. "A journey of a lifetime"
7. "A performance of a lifetime"
8. "An adventure of a lifetime"
9. "An achievement of a lifetime"
10. "A celebration of a lifetime"