User blog comment:Fandyllic/A day in the life of a wiki admin/@comment-35301431-20110728031409/@comment-3388044-20110728051512

Special:LonelyPages is a euphemism for Orphaned pages. An orphaned page is a page that has no links connecting it to other pages on the wiki, nor do any other pages on the wiki have links to it.

You can read more at Wikipedia:Orphan.