PZ got it from Rebecca Watson, who wrote:
Previously, I revealed that atheist, anti-feminist vlogger Jaclyn Glenn has to plagiarize YouTube comments in order to string a simple thought together. I then went back to blissfully forgetting that Glenn exists, but she apparently has continued making videos for people with extremely low standards. Last week on Twitter, someone let me know that she had once again been caught plagiarizing, but in this case it was an entire YouTube video from another atheist vlogger.
At the risk of becoming to Jaclyn Glenn's Capt Picard, let me point out two things about the above.
First, the idea of Rebecca Watson criticizing anyone else for "making videos for people with extremely low standards" evoked an actual laugh out loud.
Second (and proving that I learned nothing from yesterday's experiment), what is the simple interpretation of "previously, I revealed that atheist, anti-feminist vlogger Jaclyn Glenn has to plagiarize"? Does it seem to suggest that the writer [Rebecca Watson] did the work of detecting the plagiarism? If so, you have been misled, as Ms Watson did none of the work. She copied it from Ophelia Benson who, in turn, copied it from someone else.
If one reason that plagiarism is bad is that it deprives the person who did the work of the deserved credit, then I would say that Ms Watson is also plagiarizing when she takes implied credit for detecting the plagiarism of Jaclyn Glenn.
As to the plagiarism of Jaclyn Glenn: it doesn't surprise me one bit. Unlike the other Atheist Babes (tm), by which I mean Shoe and Cris Rad, I have never seen an original thought in any Jaclyn Glenn video. Oh, and she has the least-attractive body, as well.