noun. An untrustworthy shitbird, methinks.
Real citation: “I've just visited David's blog and learned the news that the real poopertraitor was hauled off in handcuffs!! I knew all along that wasn't the real Dave. He and his pumpkin are INNOCENT! Dave, I believe in you!!”
(Jan. 28, 2006, Lazy Daisy Log, http://lazydaisylog.grrrlmeetsworld.com/2006/01/doping-suspected-at-blog-olympics.html)
Made-up citation: “Get the poopertraitor! He poopertraitored on my Sunday dress.”