agenda pirate
A person who presumes to know everything about every agenda item in a meeting and talks over the assigned presenter. This person interjects their experiences and opinions regardless of relevancy, accuracy or interest.
"Who presented at the conference?"
"well, 5 people were supposed to, but the agenda pirate kept taking over"
"Today, the agenda pirate took over and explained the lives and responsibilities of teachers and students in China, even though she has never been there"
"well, 5 people were supposed to, but the agenda pirate kept taking over"
"Today, the agenda pirate took over and explained the lives and responsibilities of teachers and students in China, even though she has never been there"