I made my green like the goblin

Can you please explain what that sentence means? "I made my green like the goblin"?

I would touch her withered skin, and comment on how thin it is to keep in something infinite. And she would smile sweet and blush and tell me that I think too much. She's right. I think too much. It's always been a problem, but then again, that's how I made my green like the goblin. When I was in my 20s, I was eating Top Ramen, counting up my pennies, saving up to go food shopping, but now I'm 85, and somehow, I feel more alive.