Cai Yun Share definition Flag A girl who joins the latest trends and is a natural at talking to others. Easy-going and fun, but tends to overshare about her life. "Did you see the latest tik-tok trend?""Yeah, Cai Yun already showed me that before." Cai Yun by Mei Ming November 22, 2021 0 0 Get merch Get the Cai Yun mug. Buy Now — $32.95 See more merch