Yeap, I agree with Ched - that looks to me like correct use of semicolon. It could be substituted with an "and" without giving the sentence other meaning.
I'm not a native English speaker though, so could be wrong.
"Holy moly someone's eaten a whole bunch of knuckle sandwiches! Some people just don't lie down when you hit them, which seems unfair to me. Anyhow, you done okay. Rest up a little--put some ice on that fat lip. When I got more people what need someone to put a hit on them, we'll be talking."
I think the right word should be "who".. not being a grammar nazi but i was rather confused for awhile at the sentence not being fluid..