In chinese-english(Chinglish) slang, it ususally describes a guy who is very smart and genious. Also, if a guy is very nice to others. It could be said as very chuanly, or chuanlike.

when you're hungover as shit after a spending a night drunk as a skunk

A racial slur used towards Asian people who typically work at hospitals. Chuans are sexy and very good at licking.

This is a originally a Chinese word that means to wear clothes.

This means the outfit you be rocking or style of clothing.

Swag, Drip, Dab.