Clobberation: (noun) Working “together”. The act of working together with one or more people to achieve something However, one or more people have strong and unmovable opinions about the outcome and will take all measures to get their own way.
In a sentence:
“Mary invited me to a clobberation session where she had all the answers pre-defined before I walked in the room. Any attempt on my part to propose an alternate suggestion was met with complete resistance. Later, when I disagreed with her in a meeting with my boss she screamed at me “But we agreed in our working session!”