Okay, I'm going to preface this by first saying that I don't agree with the term at all and I try to never use it. It's offensive and pointless. But, it still very much exists in society, so I'm curious...
And don't just say "a girl who sleeps with a lot of guys." How much is a lot? Does context matter? If a girl slept with 7 different guys but they all meant something to her, is that sluttier than a girl who slept with 3 strangers? What about a girl who rarely has any sex but still uses sex appeal to get her way? What about hookups with friends? Is it more about her attitude toward sex, or simply how much she has? Basically, it seems like a complicated issue and I haven't seen a clear answer.
I'm asking because I wonder how I'd be labeled if everybody knew all about my sex life. I don't think people would suspect me of sluttiness upon meeting me. I don't wear very revealing clothing, kinda shy, I'm not very flirty (just friendly), never cheated, never go for taken men, never seek attention through sexual means, never sleep with strangers, never used sex for any ulterior motive, and have never actively looked for sexual encounters. However, I don't have a problem with casual sex, and I wouldn't be surprised if my "number" increases significantly by the time I settle down. In the last year, there were four different guys I slept with-- the first two were guys I had meaningful and monogamous relationships with, and the other two were good friends. In both the friend cases it was made perfectly clear we didn't have feelings for each other, weren't expecting anything, etc. In addition there were also a few other people I casually made out/messed around with (but no form of sex), each case being somebody I trusted. Basically, I have no qualms with screwing around as long as I'm into it, I'm safe, and I'm not hurting anybody.
So, by societal standards, would I or somebody like me be called a slut? Or if no such standard exists, what's your definition?