“吹牛(皮)”是我国民间常用的一个俗语,今义是指“说大话,夸口”。这一俗语是怎么来的呢?据专家考证,“吹牛(皮)”一词起源于我国的黄河上游一带。黄河在流经青海、甘肃、宁夏、陕西等省境内时,水流湍急,滩险浪恶,很难行舟(木制船只不易操纵,且常被撞坏)。在桥梁交通不发达的古代,生活在黄河上游沿岸的人们为了解 “Booger (skin) ” is a commonly used folk idiom in China, meaning is meaning “talk, boast ”. According to expert research, the term “bragging (skin)” originated in the upper reaches of the Yellow River in China. When the Yellow River flows through the territory of Qinghai, Gansu, Ningxia and Shaanxi provinces, the Yellow River rapids and the waves are very difficult to navigate (the wooden vessels are not easily manipulated and are often crashed). In the ancient days of underdeveloped bridges, people living along the upper reaches of the Yellow River understood