This paper starts with the semantic analysis of word morphemes based on a large number of examples，compares the typical semantic construction of the Japanese neologism “seckill” and the original word “seckill”. It is believed that the typical semantic characteristics of the new word “seckill” and the original word “seckill” are basically same. The difference is that the pragmatic usage of the new word “seckill” is richer，and a large number of new Chinese words composed of “second + V” are generalized. The semantic weakening of the primitive “seconds kill” and “kill” can only undertake the grammatical function of “body”，show the syntactic semantic characteristics of the end of action behavior，and derive the adverbial buzzword “byoude”. At the same time，it is also found that the new words of “second + V” and “～ kill” constructs generalized by “seconds to kill” reflect the cultural values construction of speed and efficiency in the new era，as well as the internal needs of young people for the construction of new emotional communication methods，which has gradually become an important part of cultural construction.