chào cờ

chào (“to greet, to salute”) +‎ cờ (“flag”).

The gathering is so named because they often start with a national anthem ceremony. The sexual sense is due to simile between morning wood and the flagpole.

• (Hà Nội) IPA^(key): [t͡ɕaːw˨˩ kəː˨˩]
• (Huế) IPA^(key): [t͡ɕaːw˦˩ kəː˦˩]
• (Hồ Chí Minh City) IPA^(key): [caːw˨˩ kəː˨˩]

chào cờ

1. to salute the national flag as a sign of respect during national anthem ceremony

   Các trận bóng đá quốc tế thường bắt đầu bằng nghi lễ chào cờ.

   International football matches often start with national anthems.

2. (by extension, colloquial) to have morning wood

chào cờ

1. (education) a routine morning assembly or gathering at elementary and secondary schools, usually on the Monday morning of each week