I'm pretty sure he's referring to not having real new york style pizza before. That's why he said 'pizza "slice"' and not 'slice of pizza.' tl;dr you're dumb.
I always find it weird how sometimes when people havent tried or done something it almost becomes like a challenge at times to purposely avoid doing it. Like not doing becomes a game or a way of life at that point. For example I have never seen the movie Grease. And at this point I refuse to see it simply because I enjoy the reaction on people's face when I tell them I havent seen it.
So, in all those years, you never, you know, walked by a pizza place, you’re hungry, you decide to go in and try a slice? How come that never happened? I know, it’s hard to understand, isn’t it? But, you know, I would go in there and order a pizza and eat a whole pizza. It was the concept of the slice that I had never encountered before. Read more: http://www.uproxx.com/tv/2013/05/up...a-just-his-first-slice-uh-what/#ixzz2UoSSyjx6
I have never seen most of the TV shows, movies, and songs that this board idolizes. I have always preferred reading and watching nonfiction to fiction. Capt. Kirk later said that of course he has eaten pizza. I read many such artices and wonder, what's that about? This thread explained it.