Geekagogue 

Geek + the suffix: -agogue

Leader of the Geeks. Obviously someone who is very, very geeky.

Bob: Steve, you are the geekiest of the geeks. You are like the geekagogue.
Steve: :(

Geekagogue by Geekagogue December 5, 2010

GERMAGOGUE 

A person, ie, SCHOOL AGE CHILD, who shares every single virus in school, who never gets sick.

I don't visit my grandson during the school year because the brat shares every virus he can find and never actually gets sick, he's a GERMAGOGUE!

GERMAGOGUE by Ella Phant January 4, 2024