There are 4 Breeds of geek.

There are Mud Bloods, the geeks without geek parents.

There are Half Bloods, the geeks with one geek parent.

There are Pure Bloods, the geeks with two geek parents.

And then there are Squibs, the non-geeks who come from at least one geek parent and are not a geek.

Oh. Then there are muggles, the non geek community who are completely unaware of what amazing things they are missing.