我是大陆马子我是大陆凯哥
[wŏ shì dà lù mă zi wŏ shì dà lù kăi gē]
This translates as 'I'm a Ma Zi (slang term) from Mainland and I'm a powerful guy called Kai from Mainland', implying confidence or possibly irony in referring to oneself using such specific cultural identifiers