Someone heavily inclined to vomit, usually from alcohol. To be a true Puke-asaurus rex
the person must vomit on so many things that onlookers might find themselves
impressed with both the breadth, color, and
quantity or said vomiter.
"Ashlee, you are a Puke-asaurus rex, you
projectile vomited on yourself, your bed sheets,
comforter, bed spread, mattress, box spring, floor, and yourself. Maybe you should lay off anything
cranberry and wear a bib for a while..."