What's in a name

During dinner we were talking about names and what they mean.
Peter wanted to know what his middle name (Joseph) meant.
I told him it means, "God will increase."
He misheard me and jumps off the bench saying, "Oh YEAH I am a GOBLIN increase.  Take that bozo's."
We were trying really hard not to laugh because he doesn't like it when we laugh but a few snickers came through. Needless to say we didn't correct him.  He even reminded us multiple times during the week that he was a Goblin.  Must be the coolest thing to be according to a 4 year old.