Pandaganda is the process by which Google has used it's Panda SEO update to succumb to propaganda sites. Sites that spew propaganda, like many major news sites, are now at the top of search because of Pandaganda. These sites get social buzz. That social buzz is like the new backlinking.
Google has engaged in Pandaganda, allowing major news sites to influence search. Since Pandaganda uses sites that have followers already brainwashed by propaganda, the Panda search rank update reinforces this propaganda. Social buzz, by which followers of these sites "like" or thumb up sites, actually results in propaganda sites being more popular on Google search, hence the word, pandaganda.