孩纸你是我的童鞋我的你的
[hái zhĭ nĭ shì wŏ de tóng xié wŏ de nĭ de]
This internet nickname humorously mimics childish expressions in Chinese, using 'kid' (孩纸, which is a playful way to write '孩子') and homophonic words or expressions to convey a sense of intimacy or fun. Essentially it conveys a playful closeness with someone.