Used to describe a man in the depths of a mid-life crisis. This term has nothing to do with the subject's actual head hair. Rather, it deals with a man attempting to relive his younger years.
Rodney's been ponytailing pretty hard lately. He just bought a puppy and has been spotted jogging around the college.
Pajama casual is a term used when working from home and preparing for a video conference. All business above the waist and your pajama pants down below.