Basically, an uber geek definition (like star wars nerd or a trekkie ) for a person who's a die-hard fan of Doctor Who.

In most cases, Whogeeks will try to coax you into watching several episodes or entire seasons of Doctor who
Just like zombification, your transformation into a whogeek is complete when you start coaxing and inviting people to watch it, to add to the growing horde of whogeekism.

the thing that you don’t have when you’re phones percentage is over 20