Bloggers, especially the conservative ones who attacked Dan Rather so vigorously.
The pajamahadeen demolished CBS's defense of the forged documents.
Seemingly irrational bloggers who think they know squat about politics, media, culture, etc, etc. Ironically, the pejorative term can simultaneously be used to characterize both reactionary activist and liberal activist blogs, who advance the agendas of other people.
Chris Matthews was talking about the Lieberman/Lamont race. He called the pro-Lamont bloggers the "pajamahadeen" like the "mujahadeen militia"