A slut-factor is a scale for quantifying the sluttishness of a girl from 0 to 10, with 10 being the 'ultimate slut' with no ethics. A girl with a slut-factor of 0 is a very nice girl.
Different individuals or organizations can create different computation methods to calculate slut-factor.
Virgin Slut Factor n. (vûr j n sl t f k t r) or VSF
The mathematical theory that the number of years one waits to have sex is directly proportionate to the freak level they will attain after copulation. For Example if the going age in your area is 17 and you wait until you are 18 you will probably only have one partner during this first year of discovery. Unlike the one who might wait until they are 27, who might feel that they need to make up for lost time therefore sleeping with 10 people in the first year.
When there is a girl to guy ratio greater than 2:1 at a particular party, which means that its a pretty good guess that every bro at the party will get laid.
Bro #1: Dude, there are so many bitchs here!
Bro #2: Hell yeah bro, its like a slut factory in here.