This has been discussed before, so I'll just copy my response from there:
The term "community" more or less settled, but if you are looking for something more distinct, there is an idea to call ourselves lemmings and the communities /c/liffs that we jump on. Alternatively we could call ourselves lemmons and the communities /c/itrusses.
Hmm, after a quick Google - I vote for Slice. That’s what you call a group of lemmings. A slice of lemmings.
Ooo I kinda like this a lot! How do we get this to be official?
Could always ask the devs?
Kbin can their communities Magazines, so people are okay with alternate names for communities already.
Then again trends catch on in weird ways. What we end up calling them might be something we haven’t heard suggested yet.
Wish we could make slice catch on. Not only for the reason you mentioned, but it also implies that what you are looking at is a part of a whole. So communities are a slice of lemmy.
A "Showerthought" is a simple term used to describe the thoughts that pop into your head while you're doing everyday things like taking a shower, driving, or just daydreaming. A showerthought should offer a unique perspective on an ordinary part of life.