What if you vomit and poop while passed out from alcohol?

You may die if you inhale the vomitus. Others may be offended, depending on the details of the excremental evacuation. Other persons may also take advantage of your situation to harm you

If you pass out to the point where you both are unconscious and loose control of your bowels you are badly Alcohol poisoned, that means close to death. At this point you will probably die without medical help, that means someone needs to call for help and they are all probably drunk too.

Please realise that virtually every university in the western world has had a Alcohol Poisoning death in the last few years, this can happen to you.