Meet Awesomely Bad Lyrics, which... well, you can guess, can't you? But it's more than just finger-pointing. There's annotation as well:
I picked up the cash flow / Then we played bones, and I’m yellin' domino / Plus nobody I know got killed in South Central L.A., today was a good day
I have played dominoes a few times and have never heard of yelling "DOMINO!" but apparently it is a thing.
I don't know how this last line is supposed to be punctuated: He could be saying that people he knows got killed, just not in South Central L.A. ... or nobody he knows got killed, and it was a good day in South Central L.A.