To a Hog

Would a hog be a hog
if he didn’t hog? What makes
me me, what makes him him?
If you take him to England, 
maybe add a G, is he really a sheep?

What if he goes hog wild not being a hog?
Can a whole hog live high on the hog?
Take away the essence, the definition,
aren’t you naked? How can I be me
if I lose half of me? How can I be fat

if I’m not?