Gadaboutag: An orphan HTML tag that's misdirects your web searches.
Garpage: The editorial page of virtually all daily metropolitan newspapers; often useful, however, for the bottoms of bird cages.
Generica: The smothering uniformity of pop American culture.
Giraffiti: Vandalism spray-painted very, very high on a bridge or a building.
Gleemail: Those inspirational emails forwarded by a friend or coworker that may or may not bring joy to your inbox.
Glibido: The impulse of someone who is all talk and no action.
Gliterati: The high-faluting cultural elite.
Gobweb: A catch-all internet site.
Googlegänger: Some other person who shares your name and who shows up when you google yourself.
Governrants: The frequent—and ever increasing—lectures from Big Brother.
Gynodoxy: The fundamentalist creed of a modern feminist ideology.