Name calling or being descriptive?

Cameron, playing Wii basketball against a character (a Mii) that was made to look like Chewbacca:

"Oh, this is a mess. It's a mess, Mama! I am so discouraged!"

That, to me, was funny in and of itself, but I nearly died when I heard what came next.

"Cameron, what's the matter? Why are you discouraged?" I asked.

"Because the fathead is so hard and I can't beat him."

{Though we did talk later about how we never, ever call another person names, I couldn't even correct him on this one. He wasn't name calling, I discovered, he was just....being descriptive. That Mii has a giant, giant head....}