3.x Draconomicon said that huge dragons weighed roughly 20,000 lbs.
According to this site, it takes ~ 30 "drinks" (shot, 12 oz beer, 4 oz wine) to get a 2,000 lb. creature to a BAC of 0.056, which is still not drunk. A 200 lb. person would be at 0.635 and probably die. That is roughly...