Ha ha - that title's got you guessing, eh? You probably won't remember: I'm part of a writing group, The Electric Tomatoes. We're named after a poem of mine, and have been meeting, once a week, for (incredibly) the last 15 years.
This week we had our Christmas bash. We all contributed food (I made king prawn Thai green curry - yum).
Most writing groups are about feedback, but we never bring work written elsewhere: we are simply making space in our lives for writing, purely for fun, and we do it on the spot. We have an envelope full of bits of paper, containing words or phrases as starting points. Each week we pull one out as a topic.
We only have about 50 minutes to write, so no time to think much, which is the secret. It's amazing what you can come up with when pushed, and how varied the responses can be.
We finish by reading out what we've done (not compulsory, but we generally all have something worth hearing, and it's surprising how often someone writes something rather special).