There's something that bugs me in some way that it makes me want to seek an answer. For all my life lurking the web for inflation related content and I have always seen the term inflation used to describe the fetish. I see the term expansion being used to describe the situation as well, so I assume that it never really made a difference in how something ballooning in size would be different based on what was used to describe the situation.
In other words, there are artist that draw scenarios that would be fitting to inflating the character. But they would dismiss the term inflation entirely and would say "It's called expansion." And then there are others that would use both terms to describe the situation (Mainly in tags). And of course there are others that just say inflation.
I decided to try and educate myself out of pure curiosity and find the definition used to describe expansion and inflation.
Inflation generally means: to fill up, blow up, to inflate. In general, the act of inflating something.
Expansion generally means: to broaden, to enlarge, to make something bigger (which can mean something different than inflating). In general, to expand upon something in which you increase its capacity.
The two terms (at least to me) mean the same thing when used in the context in which we refer it to (both meaning the ballooning in size of a character), especially considering that they are synonyms.
I mainly posted this to get this off my mind and to see what others would say. I suppose if I were to ask a question towards everyone in this community, do you generally call this fetish Inflation, Expansion, both (meaning there is no difference), or neither (you describe it in your own way).
To me, Expansion is a generic term, while Inflation is more specific. The term 'inflate' usually means to fill something with gas or air, though 'to increase by a large/excessive' amount is also acceptable. In my mind I've always considered inflation as the intention of making something full or taut, while expansion focuses simply on making something larger (not necessarily fuller).
Inflate I commonly associate with air or water based, while expansion leans toward stuffing / slime, and non-material means of growth (such as magic).
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