A popular orange juice brand at the time.

S-K-Y breaks it down himself in an interview with complex:

“As far as the references, I felt it was only right being that I was using their beat to shout them out in one way or another as opposed to saying, “Shout out to NER*D, shout out to Pharrell.” I’d rather do it a more creative way. I’d rather do it in a way where either you may not have caught it, or you may have caught it. I was recording it with !llmind and he caught it right away. He was like, “Yo, that was really really cool how you did that man.” The minute I laid it down I watched him while I was recording and he started laughing when I said that part.

To get to the lines, when I say, “Them sounds that you seeing is all that I really know,” it’s two parts. The first part being I feel like when I make music you can see it. I’ve always said that. I’ve always said when I make records you can see it just as much as you can hear it. You can kind of close your eyes, listen to what I’m saying and you see everything that I’m telling you, like I’m painting a picture. With that being said, it’s pretty much everything I talk about is what I know. I only talk about things that I know, things that I’ve experienced and that I’ve dealt with on a first-hand basis. And I can portray it to you and convey it to you in a way where you get it so well because I know it. I can’t tell you how to run a play for the New York Giants because I never did that, but I can tell you how this happens where I’m from or what this is like because I know it. So, that’s all I really meant. It was just a cool way of me saying everything you hear on a record and potentially see on a record when you hear it from me is what I know. It was just a cool, complicated way of saying it."

http://www.hiphopdx.com/index/news/id.15674/title.skyzoo-breaks-down-the-great-debater-promises-an-ode-to-jay-zs-reasonable-doubt-by-years-end