牛皮

cowhide / leather / fig. flexible and tough / boasting / big talk

ox / cow / bull / CL:條|条[tiao2],頭|头[tou2] / newton (abbr. for 牛頓|牛顿[niu2 dun4]) / (slang) awesome

surname Pi

leather / skin / fur / CL:張|张[zhang1] / pico- (one trillionth) / naughty

to boast / to talk big

psoriasis

kraft paper

chard (Beta vulgaris), a foliage beet

chard (Beta vulgaris), a foliage beet

buff (color)