The party poopers at TSG claim it's a total hoax. Well, not total:
Asked by TSG if his son had a 17-year-old cousin named Bennett, Sheldon’s father, also named David, laughed and said, “That’s what he says.”
The elder Sheldon went on to note that his son has a friend who is prone to "Yogi Berraisms" and that he uses some of these malaprops for the “Bennett” blog. The friend’s name, he said, “has been changed to protect the innocent.”
“Mac writes them,” Sheldon said, “and puts it in the form of texts.”
Someone needs to hire that dude as a comedy writer. Dish fave texts from Bennett here.
The Dish 