It means someone wants to fight you right at that second.
Girl#1: I don't like you
Girl#2: Dead on site. Come on!
New government websites set up so you can rat out your friends and enemies if they speak out against the government.
He went to a Rat Site and gave them my information when I spoke out against Health Care in America.
Websites that are not worth visiting, or ones you wish you wouldn't have or shouldn't have visited. These sites have viruses, redirects, and scams.
A location within the wordintarweb/word which provides information and data pertaining to any given organization, business or personal user.
Dude, this porn web site is awsome!
Something that often, but not always, contains large amounts of porn.
I viewed pornographic material at that web site.