哎九九
[āi jiŭ jiŭ]
In Chinese culture, numbers are often associated with auspicious meanings or used simply as catchy names because of how they sound phonetically. Here, 'ai' could be an expression of sigh or lamentation, and 'jiujiu' (nine nine), besides just sounding catchy, might also imply something that has reached its zenith or utmost level, given nine traditionally symbolizing supreme in some Eastern traditions.