Off the Perpendicular is a phrase used to describe something that is not in line with the expected or accepted norm. It is often used to describe someone who is behaving in an unconventional manner. The term can also be used to describe a situation that is out of the ordinary. The crossword solution for this term is ATILT, which means to be tilted or leaning to one side. This phrase is often used to describe something that is not in line with the expected or accepted norm.