Refers to the more light-hearted/trivial-affliction-related (i.e., non-substance-abuse or other serious-addiction-type condition) gatherings of sufferers where everyone shares life-stories and fellowship, and tries to assist each other in reducing/alleviating said unfortunate conditions/infirmities. Examples would include Belchers Anonymous (at all the other meetings listed here, they serve you tasty carbonated drinks, but at this meeting, you only get non-fizzy libation so that you won't start burping!), Bellyachers Anonymous, Colliders Anonymous (for folks who often clumsily blunder into objects/people), Foot-steppers Anonymous (again, this would be for those of you who don't adequately watch where you're walking, and so you accidentally tread on others' toes a lot), Groaners Anonymous (they seat you in chairs with heating-pads and offer you pain-relievers), Grumblers Anonymous, Stumblers Anonymous, Whiners Anonymous, Yawners Anonymous (at all the other meetings they let you sit on comfy upholstered chairs, but here they make you sit on hard wooden benches so that you don't get too relaxed and then start sleepily displaying your tonsils), etc.
One amusing fact about alternative anonymous meetings is that quite a number of any particular meeting's attendees may also suffer from a lot of the maladies and shortcomings addressed in other anonymous meetings, as well (i.e., achy people who copiously moan and groan also tend to complain a lot and mindlessly bumble into and/or step on the feet of unsuspecting souls unfortunate enough to happen to be in their paths), and so you tend to see a lot of familiar faces at many of the various meetings.