As one of the East Asian civilizations, China and Japan have formed their own language characteristics over thousands of years. Compared with other types of linguistic classification, interesting utterances are small in amount and have a low degree of concern, but it contains a substantial pragmatic value. Due to the cross-cultural communication is emphasized in the 21 century, the interesting utterance of the two countries is undoubtedly a perfect research tool. It can also help people find the similarities and differences between the language characteristics and life patterns in Chinese and Japanese. From the cross-cultural perspective, the buzzwords and the senryu(or Tik Tok Meme) in Chinese and Japanese in the past five years ( 2018-2022 ) are taken as examples in the present study, to compare the interesting utterances in these two countries and explore the cross-linguistic variation in the different natural language environment.