Subaverage
A position on the social pyramid that is made up of socially awkward kids below the ranks of average kids, but they aren't despised by the entire school.
My friend: He doesn't really talk much.
Me: I know, no one knows enough about him to like or hate him, he's one of those subaverage kids
Me: I know, no one knows enough about him to like or hate him, he's one of those subaverage kids