Giant Global Graph (GGG) was notably used the first time by the inventor of the World Wide Web, Tim Berners-Lee, on his blog.
Tim Berners-Lee thinks about the social network itself that is inside and between social-network Web sites such as Facebook. He assumes that people can use the word "Graph" to distinguish these from the "Web". Then he says that, although he called this graph the Semantic Web, maybe it should have been called the "Giant Global Graph".
"GGG" has been used several times by Berners-Lee and by others in other blogs. GGG may be described as the content plus pointers of the WWW transitioning to content plus pointers plus relationships plus descriptions.
Nerd: Dude who needs the world wide web when you can have the Giant Global Graph!
Brother: Get a life. GGG stands for good, giving, and game. Like my girlfriend...