Mostly you would say something is "the shit" if it's bangin or something, but if it happens to be particulary phat, you could elaborate, saying something is "the shit's tits" being the best or most valuable part of the shit, or the "best of the best."
igg 1: You ever had Smirnoff Ras with Cranberry and Grapefruitjuice?
igg 2: Yeah dude, that stuff's the shit's tits!
when a female has small breasts, but extremely large dark brown nipples.
Vince: hey Ralph you see that stripper over there.
Ralph: yea, she definitely has some shits for tits.
Vince: we need to get the fuck out of here.
Ralph: i can almost smell them from here.
Boys who enjoy yaoi (a genre in Japan that contains sexual and/or romantic relations between two men); literally translates to "rotten boy"; corresponding female : fujoshi