APAD: Bravo Zulu!
You may or may not know this "idiom". It's actually a military phonetic alphabet code phrase which means: good job/well done ;-).
I came across to the NATO phonetic alphabet the other day (see pic below). It is the most widely used set of clear-code words for communicating the letters of the alphabet, especially in aviation and military. Over the decades, soldiers also have developed phrases that combine the code words in the military's phonetic alphabet. Here are some common ones:
- Charlie Mike: Continue mission
- Oscar Mike: On the move
- Bravo Zulu: Good job/well done
- November Golf: No go/fail
- Tango Mike: Thanks much
- Tango Yankee: Thank you
- Lima Charlie: Loud and clear
There you go. Now you know the military phonetic alphabet. Bravo Zulu!

Bonus: We visited Beacon Hill Park last Friday, I used my 8 yrs old Wilbur phone to take some pictures and felt amazed by the results: the Wilbur phone may not be the best photographer, but he is definitely an artist, an impressionist artist actually, with proofs 

Ducks ducks, can you see?

South side of the Stone bridge

North side of the Stone bridge
