Similar to a "food coma," one gets a drink coma from being too full to function after drinking too much. This ranges through many beverages- all the way from alcohol, to juice.
I can't drink hot cocoa right now, if I drink hot drink right now, I'll fall into a drink coma and I will pass out instantly
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