The act of three beautiful and talented AMPers coming together to share thoughts, challenges and ideas for the mutual benefit of all parties. Discussions take place with such speed and uniformity of understanding that it would appear as though the members are licking the ideas out of each others heads - hence the term.
Hi Mark, did you solve that big problem?

Yes Pete, I had a session with Ryan and SJ and sorted it all out whilst also benefitting them both. It were a right proper mutual brain licking.
by mutualbrainlicker February 24, 2016
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