“上头”作为流行语重新活跃于网络和人们的日常生活,且被赋予了新的意义,是典型的旧词新用。其经历了动词、形容词到构词语素的演变,有多重词汇义和色彩义。此词义演变过程属于词义泛化的一种,其动因和机制主要是隐喻和年轻人的求异心理。
“Shangtou” is a catchword that reactivates the Internet and people’s daily life, and is given new meaning. It has experienced the evolution from verbs, adjectives to morphemes, with multiple lexical and color meanings. This process of word meaning evolution belongs to a kind of generali-zation of word meaning. Its motivations and mechanisms are mainly metaphors and young people’s psychology of seeking differences.