Swag, a popular online word, describes a state of self-confidence and fashion, and is often used to praise a person as cool and powerful in hiphop circles. Swag was first used for rap. Swag is the abbreviation of swagger, which is a trend of hiphop. Many people will add a swag after rap, which is roughly a state of self-confidence and style.

It may be close to the meaning of another more common English sentence "just do it". It can be understood as the coolest, the most powerful, the sixth and so on, which are obvious modal particles.

The development of words:

This word is often used by some young people who love hiphop culture. Swag is the most commonly used hip-hop cultural word among young people in China. Some students talk about swag, some take swag as their own signboard, and what's more, there will be several clothes printed with swag in the closet. However, people who are related to pop culture and catch up with fashion all say they are swag. The word is like a flood.

Reference to the above content: Baidu Encyclopedia -swag