Quality vs Quantity

What qualifies a person to be labeled as a slut? Is it the number of people she banged? Or is it her level of easiness to bang? Or perhaps a combination of both? If we take those qualities into consideration then what about the people who have been in a series of failed relationships? Would society label them as sluts because they have been and laid so many people? Or would society turn a blind eye and say those sexual partners don't count towards the slut meter since they were in a relationship? What if you're in a different relationship every year or even every quarter? The numbers would surely stack up to slut status wouldn't it? The average man would have more sexual partners over their lifetime than the average woman and yet it's always the woman that society talks about as the sleazy ho bag. What kind of a ho are you?