vomitus(n = noun.substance) barf, puke, vomit - the matter ejected in vomiting;
is a kind of body waste, excrement, excreta, excretion, excretory product

N  ejection, emission, effusion, rejection, expulsion, exportation, eviction, extrusion, trajection, discharge, emesis, vomiting, vomition, egestion, evacuation, ructation, eructation, bloodletting, venesection, phlebotomy, paracentesis, expuition, exspuition, tapping, drainage, clearance, clearage, deportation, banishment, rouge's march, relegation, extradition, dislodgment, bouncer, chucker-out, vomit, vomitus, puke, barf, emitting, emitted Int, begone!, get you gone!, get away, go away, get along, go along, get along with you, go along with you!, go your way!, away with!, off with you!, get the hell out of here!, go about your business!, be off!, avaunt!, aroynt!, allez-vous-en!, jao!, va-t'en!.