I found it by chance and when I see the images with the tag, the "iwabner" tag does not appear to see in the wiki in some images. I searched for it on Google and apparently it is the same as entering "hentai" or "huge_breast" because several results appear that take me to porn videos with big tits. I found a page where they ask the question, but the answers do not reach a conclusion, several give different answers. I ask it here because surely you know the true meaning.

It was some shit started by a guy that got banned ages agp. It got aliased to roll into other tags.