洗剪吹 (xǐjiǎnchuī), “Wash-cut-dry” is a subculture of young people. As you may have guessed, their immediate identifier is their hair, which is brightly colored and spiked in the most creative ways.
Online, “wash-cut-dries” are also described as 杀马特 (shāmǎtè) - a Chinesification of the English “smart” used in the most ironic way ever. While “wash-cut-dries” are often from blue-collar families, both rich and poor roll their eyes when they see them.
The rest of China thinks they’re either tacky or crazy, but within the community there’s a lot of support, slang words, counterculture, and camaraderie.
“Wash-cut-dries” look like punks, but seemingly without so much of the anti-establishment worldview - they mostly just really like their hair. And selfies. They like selfies too.
“Hey, honey, did you see those 杀马特-asses?” Baidu Baike