When someone (preferably a woman) squats over your face and shits in your mouth. You then chew it until it is mushy or just generally chewed up and then regurgitate it back into their asshole.
You didnt create a big enough brown rocket for our threecoursemeal
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