Welcome to today's 'Teachmeet'.
The background information supplied in advance of this first get together shared some brain stormed ideas on possible names for this type of get together. Given the range of 'events' or 'activities' that could adopt this model, Teachmeet might be too specific a term for common use.
Discuss this between you and feedback your combined thoughts by commenting on this blog post or noting them on the paper provided.
What is your preferred name for this sort of event (choose from list provided in your background email or suggest your own)?