complainstorming
Like brainstorming, except you list complaints about something, and then list the opposite of each complaint. Makes use of people's natural tendency to complain in a constructive way, in that you end up with a more complete picture of what you do want.
We tried brainstorming a solution to scheduling during holidays but only came up with the same old same old. So we switched to complainstorming, and came up with a dozen really good solutions.
Complainstorming
When creative professionals gather under the auspice of generating ideas, but really intend to bitch and moan about their jobs/workplaces/projects/colleagues.
"We had a lunch meeting. It started out as a great ideation session but devolved into complainstorming."