The word titosotto comes from Vicente "Tito" Castelo Sotto III, who is, unfortunately, a current Filipino senator.
Tito Sotto is a staunch antagonist of the Reproductive Health (RH) Bill, and has taken to using theatrical posturings while delivering speeches in the Philippine Senate, to drive his weak points across. He has been exposed for plagiarizing parts of the blog of Sarah Pope to use in one of his lachrymose speeches, but when confronted about it, instead of owning up and apologizing, he chose to let his Chief of Staff Atty. Hector A. Villacorta, arrogantly try to dismiss the facts in the blog of Ms. Pope, no less.
Aside from Ms. Pope's blog, the good ol senator has also been exposed for further having titosottoed from three other blogs. At which point, he claimed that "plagiarism is not a crime in the Philippines."
What's most hilarious about the whole affair is that when faced with the anger of netizens over his arrogant copy-pasting, he claimed he was being cyber-bullied. Google "tito sotto plagiarism" to get more information, because there's lots, lots more to this matter, and that's why the term deserves inclusion in the revered urban dictionary.