This is a Wardine section - maybe the first, I don't remember, but it's also short. Yeah, not easy, especially if you're not into U.S. slang and whatever. I really wouldn't sweat it, other than Poor Tony might make a very small appearance later (don't remember).
'Patty citizen' *probably* refers to 'Paddy citizen', meaning Irish. The big one, which Wallace attributes to everyone in the novel and I've never heard before (I think he invented it, honestly) is, 'elemonade the Patty's map', which means 'eliminate their map', which means kill them or blow off their face - map being a term for face.
Anyway, this section, of all things, is the very, very least of your worries. Honestly, Infinite Jest is front-loaded with its 'difficulty' (which isn't all THAT bad). The breakthrough is like only a 100 pages away. Eschaton. Remember Eschaton.
It kinda sucks - the longer you take to read IJ, the less it hangs together, I think. But then it's so damn long. I think you get a vague idea the first time around, but it kinda demands a re-read. For reference, I'm 50 and have read thousands of books. This is one of the only two I've ever read twice.
Btw, it's like total serendipity: I found the section you're talking about just randomly opening the book near the beginning. I saw 'USS Millicent Kent' and knew I was in the right place. It was kinda freaky.
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