W4T (Word for Today) - πληθωρικός – normally used in reference to quantity but can also be used to describe a person with an exuberant or having an overly-grand personality. One can be plethoric in style or physique.
We all want to believe that we add something special to any group or organization of which are a part. This is our ego working to puff us up rather than the call of our Lord to be a servant of all and act with humility. Sometime we are just "too much" or worse, "too full" of ourselves.