Someone who thinks that god is the way, the only way, and if you don't follow god you're going to
hell.
They vary from regular Christians, because unlike the sensible ones they do everything in their power to convert you.
Often these
people live in
small towns. They are particularly densely populated in the midwest.
Dude, that super-christian keeps sayng he'll pray for me.
See that
guy? He gave me a free bible even though I
said I didn't want one... He must be a super-christian.