Fapper
This is another usage of the word "fap", which means to masturbate. There are three distinct levels of fapping. A Fapper is someone who spends a part his day fapping. The Fapper probably faps at least twice a day. Of the three levels of fapping, a Fapper is the lowest level. This is a person you should avoid shaking the hand of some of the time.
Cut from the Urban Dictionary
