Usually defined as old (and/or significantly older), overweight and unattractive. They are usually in their mid-thirties to forties and older. They could have one of these traits or all three. The name is applied to these individuals who creep and stare at young adolescent boys and girls as well as high school and college aged females and males. In a female's point of view, we are freaked out by these guys and find it scary that someone as old as our fathers and/or grandfathers are sexually attracted to us. Other than that, we make fun of them for thinking they have a chance with us young-ins.
Normal 17 year old girl walks by a group of creepy old men and they creepily stare at her and have lusting eyes. 17 year old girl is creeped out by this and runs away.