>>17843 there isn't much on Pixiv, unfortunately, especially if you don't like stomach punch. (It's the ejaculation metaphor/disease thing that does it for me). The first thing you'd search would be 嘔吐 (type おうと and it'll show up in autocorrect or just copy paste; it means vomit). 下痢 (げり, diarrhea) sometimes has vomit along with it. A lot of the time it just gets lumped under スカトロ(すかとろ, scat), unfortunately, but that's a huge tag of mostly other things and it's going on 1050 pages (at pixiv's stupid 11 results per page thing). It's really annoying, that people don't give a shit about tagging anything properly, because scat is a huge category and for most people, various subtypes will be "meh" or "fuck no" while just a couple will actually be like "fuck yes," and there's no way to tell without looking, if all it's tagged as is "scat" or "スカトロ."

My current goal is to go through all 1050 pages and then go back and catch what got posted while I was doing that, and save all the ones with vomit, diarrhea, or "sloppy" soiling that aren't just completely horribly bad or involve eating shit (personally grossed out by it), and…dump them on exhentai for the benefit of others or something. Plus whatever actually good omo I find, too.