It goes like this: When six and seven appear together in print, or in speech, or on television, or in a YouTube video, or even just when you write them down on loose-leaf paper, that’s “six-seven.” “Six-seven!” you say, you probably being a middle-school-age child. Such is the youth phenomenon known by this name. Now you know, but chances are you already did, especially if a preteen has lived in your house anytime since this spring.Six-seven-ing seems to have peaked around Halloween, and now, as the holidays descend, its days…
