From China Digital Space
绿爸爸 (lǜ bàba): Green Daddy
Satirical name for its near homophone in Chinese, Green Dam. Green Dam Youth Escort software (绿坝·花季护航) was developed under the direction of the Chinese government to filter internet content on individual computers. Pre-installation of Green Dam software was originally intended for all new computers; however, because the proposed policy proved deeply unpopular, mandatory pre-installation has been delayed to an undetermined date.
“Green father” is the subject of many online jokes, often juxtaposing green father with valley brother (Gu Ge, or valley dove).