red-letter day

(noun) a day that is memorable because it was so good

Example Sentences:

A: Did you have a good birthday?
B: It was a red-letter day! I had lunch with my father, dinner with my boyfriend, and my friends bought me some nice gifts!

The employee had a red-letter day after giving a presentation, because the boss liked it so much that he got a promotion.

Media:

Similar idioms:

1. roll out the red carpet
2. give someone the go ahead
3. paint the town red
4. show-off
5. eat crow
6. catch someone red-handed
7. give someone the green light
8. see red
9. touch on
10. eat humble pie
11. wash one’s hands of something
12. clean break
13. tie someone down
14. red-hot