the vomisorous rex is the creature the usually takes its true form right after a night of heavy drinking. He/She can usually be spotted hunched over a coffee maker, glaring at a cigarette, or passed out on someones living room couch. This monster is usually the saturday morning alias of boys and girls between the ages of 17 and 25.
"Man Giselle was so fun last night"
"Yea, but did you see her this morning, such a vomisorous rex"