Someone (usually a girl, but may be a boy), who is both a nerd, and a sket.
They try to be popular by dating loads of guys and having sex with anyone who has a dick, not caring who it is and just thinking them as "
walking sex", but
at the end of the day they're just nerds trying to act cool.
They may be
intelligent, nice-looking girls, but they'd do anything to be popular. Sort of strange suck-ups!