The unit of measure of Jesus. For example, Jesus Christ, Our Lord and Saviour, obviously scores a Jesosity of 1. TonyVoyle alternates between 0.6
and 0.8 with a beard. To reach 0.9 you probably need to start performing miracles of some sort.
Note: while Jesosity is the correct nomenclature for Jesuses; the unit of measure of Elvis is Elvisness. Uh-huh.