Mushroom head (hair is as common as mushrooms)
Campus flower (selling tofu flowers at the school gate, GM) Shen Ni (female)
Dumb duck (mute, shouting, spitting, alias: watering can dumb duck, suitable for social teachers)
Dutch pig (fierce and fat)
Fertilizer (chemistry teacher, fat)
Watermelon is too wolf (watermelon head, also flirting)