Cockzilla
From Super-wiki
Cockzilla is a portmanteau of cock and Godzilla.
It is widely accepted fanon that Jared Padalecki has a very large penis. It is known by a number of 'nicknames' such as cockzilla, the Padacock or Jared's ginormous peen.
Not to be confused with the Magical Healing Cock, although in fanfic it often performs this function.