Work Chill Factor

My spousal unit asked me today if I had a long day ahead. I knew what she meant, but this turn of phrase still puzzles me. Usually I answer, “No, it’s 24 hours like every other day.” But today I told her that I had a “work chill factor.” She asked me what that was, and I replied, “It’s like how a wind chill factor can actually make the weather feel colder than it is. Well, a work chill factor is when your job can make a day seem longer than it is."