After too much drinking and/or eating over a 2-3 hour period, there is an excess amount of gerd in the throat that causes uncomfortable burning sensations and excessive burping...not to mention an overall feeling that one would feel the need to have to throw up.
I was a total pig at the arcade! --- After 8 beers, two meals, and a pint of ice cream, there was a definite gerdiness when I slept that night.