What is Megaslut?
1.
a person exceeding the standard slut level
Oh my god, did you see what that megaslut was wearing?
See
2.
Megaslut= Simone. Incredibly big whore who flirts with everybodys boyfreinds, or just random guys. Usally megasluts are named Simone.
"Dude look at that megaslut, she is totally flirting with Britney's boyfriend."
"Yeah what the fuck, she needs to get a life, i bet her name is Simone."
See