A once sided conversation; a story that is retold multiple times daily; always changing. With the retelling of the story the facts change and any gaps in the original story are filled in with unrelated current events.
I have heard that johnversation so many times and each time it becomes less and less accurate.
When a conversation is led by John and you fall asleep three times during it. Usually happens at bi-weekly engineering meetings.
General Manager "Let's keep this short and sweet. John, why don't you start us off."
*3 HOURS LATER*
John "...I think that about sums it up..."
Jimmy "We really need to stop having these damn Johnversations..."