Pu-erh tea

„The process used to convert máochá into ripened pu'er is a recent invention that manipulates conditions to approximate the result of the aging process by prolonged bacterial and fungal fermentation in a warm humid environment under controlled conditions, a technique called Wò Dūi (渥堆, "wet piling" in English), which involves piling, dampening, and turning the tea leaves in a manner much akin to composting.“

„chui niu; 吹牛. 吹 - chui, to blow. 牛 - niu, cow, but in this case can be read as 公牛 or bull. An almost default aspect of tea drinking - 'shooting the bull'. The talk that often accompanies tea drinking and can be peppered with much knowledge, a little exaggeration and some humour. Also 吹牛皮. 皮 - skin or hide. 'Blowing the bulls hide.'“