Typically a female who engages in sexual activity with numerous partners without using protection or controception and accumulates many sexually transmitted diseases and/or unwanted children because of her slutty actions. Members of the male species unknowingly bang these individulas to later learn of the STD Slut's infestation. STD Sluts are typically socaily awkward, have daddy problems, or are attention starved and therefore use their sexualtiy to compensate for their life failures. Typically, repspectable human beings do not like STD Sluts.
Girl A sleeps with many men to compensate for her life failures and short-comings and therefore, she is an STD Slut.
A female who has daddy issues and trys to get back at all men by fucking them hoping she can contract and STD to spread. In fact she has so many STD's she dispenses them like a vending machine for the price of penis. Usually on birth control because being pregnant would take time from her being a slut. Refuses to use condoms. She is so easy that you will be surprised at the minimal effort you had to put in to get her to spread her legs. Once spreads you might have doubts of what you are about to do since her vagina will most defiantly look like something from health class. Every guy (and girl) that fucks her will try claiming that they were drunk and on drugs even if they are straight edge.
Man 1: "Damn dude, I went to the doctor today and she told me I had 3 STD's."
Man 2: "I told you that would regret fucking that STD slut."
Man 1: "I know but I was so drunk and high of heroin."
Man 2: "You don't drink or do drugs."
Man 1: "WTF WAS I THINKING??!?!?!?!?"