Something that is "fungusting" can be defined as something disgustingly fun, such as the following: Mud-wrestling, egging, digging up a hole to bury a body.
I was stabbing fungus to death earlier, it was pretty fungusting...Hail Satan
a form of shitposting within the Touhou community that involves posting images of the fumofumo plushies in random situations, often as reaction images.
the word comes from the instagram account of the same name.
A food related shitpost often linked to a food youtubers such as Binging with babish or you suck at cooking or celebrity chefs like Gordon Ramsay or Guy Fieri these shitposts will often include fond at the bottom of a pan, obligatory hatred of cilantro cursed memes of food and cheese worship.
Also the name of a Babish related shitposting group on facebook
Me: did you see that shitpost on fondposting?
friend: yeah I did didnt realise people hate cilantro so much.
friend: So what have you been up to lately?
Me: Oh you know fondposting online.