I think of a normal job as one where you work full time, in exchange for an hourly wage or a fixed monthly salary, maybe with commisions. Full time would be approximately 8 hours per day, for 5 or 6 days per week, depending on your country or culture.
An abnormal job might be one where you have flexible work hours, or work from home, or work only on commission. Or mabye when your are self-employed.