From China Digital Space
干爹 (gān dié): godfather
The word godfather is equivalent to the English “sugar daddy.” While the term had not been in wide usage, it became an internet catchphrase after aspiring actress and model Zhou Rui posted the following on her microblog:
“I’m grateful that I always have you in my life. I’m grateful godfather, that you took time out of your busy schedule during the two meetings to host a birthday party for me.”
The “two meetings” refer to the annual meetings of the National People’s Congress and the Chinese People's Political Consultative Conference.
The post was accompanied by the following picture:
Zhou Rui had previously achieved some degree of internet celebrity by complaining about those who criticized her “ass-high miniskirts (齐B小短裙).”
See also this video produced by China Forbidden News.