From China Digital Space
绿爸爸 (Lǜ Bàba): Green Daddy
Satirical name for Green Dam Youth Escort software (绿坝·花季护航). This software 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 to be mandatory for all new computers Because the proposed policy proved deeply unpopular, mandatory pre-installation was first delayed to an undetermined date, and then shuttered completely.
“Green Daddy” is the subject of many online jokes, which often juxtapose this fatherly figure with bone brother.
See also Blue Daddy.