A group of 'adults' who have children and/or are married, who are overly obsessed fans of the overrated 'Twilight' book series. They usually spend their time, neglecting their children, ie. - forgetting to feed them - and also, ruining the dazzle of another, more superior community of 'fans' who go by the name of 'twatlight(ers)'.
> "Hey, that kid looks pretty down, underfed and neglected."
> "Oh. His mother must be a twimom"