Best definition
As the name suggests walkertholigist, is a person that studies walking. People who study this tend to be well endowed

so need to develop ways to walk in which their penis will not drag along the ground. It is believed walkerthologists developed the hop and skip. In order to move around freely in the world, not getting gravel rash on their penis and not needing pesky underwear

Me; Man I’ve got a larger than average penis

Friend; You should think about being a walkertholigist.