someone who flirts with guys via email, texting, facebook, twitter, myyearbook, etc. non stop. Someone who has a thing or dates guys from all over the place and never sees them. Also known as the Well Known Internet Whore.
Basically: Someone who hides behind a screen and sleazes around with multiple guys at once.
Annie: Dude! Yeah, she posted on Phillips wall too!
Abby: Gosh, she's such a social slut.
Marie: Did you see what Isabella texted Kobe last night?
Hilary: Yeah! She was texting Griffon the same exact things though last night!
Marie: Wow there's not even a name for her.
Hilary: Yeah, actually there is. Social Slut.