Fei Deng Share definition Flag This is a cantonese phrase, meaning when the nipples are poking out of your clothes ~the teacher's nipples are sticking out~ Jonny: OMG THE TEACHER FEI DENG Fei Deng by onjj7799 December 21, 2014 0 0 Get merch Get the Fei Deng mug. Buy Now — $32.95 See more merch