I'm gonna make a list of words commonly used to refer to Inflation and the categories of inflation they, to me, refer to.
Inflation: The generic term which can be used for any kind of Inflation. However, it is commonly used as the expansion of anything with air or external gasses.
Bloating: Expansion of the belly due to a drink or a food that has been consumed causing air to blow up the belly.
Filling up/Swelling: Expansion of anything (commonly the belly or breasts) by drinking liquid. However, liquid does not need to be consumed to be considered swelling. It could also be forced in with a hose, pump, or something else; as long as the inflation is caused by massive quantities of liquid. Blueberry Inflation would fall into this category as a result.
Stuffing: Expansion of fat caused by mass eating.
Expanding: Any other kind of inflation, as well as the above.