It is, not surprisingly, a marketing stunt. The company will continue this exercise until Betty successfully tweets a five-letter word in English, which will apparently earn her a place in the Guinness Book of World Records. She seems to be making progress — on Thursday, she typed “bum.” Dark irony undercuts the humor here, of course. Betty is unwittingly working to promote a firm that exists only to execute and barbecue her brethren for human consumption.