Question

What is a filibuster

Answer 1

its an action such as a prolonged speech that obstructs progress in a legislative assembly while not technically contravening the required procedures.
contravening meaning: violate the prohibition or order
prolonged meaning: Something that continues for a long time
legislative meaning: When you have the power to make the laws/rules
procedures meaning: an official way of doing something
Prohibition meaning: an action of forbidding something.
forbidding meaning: unfriendly or threatening

Answer 2

Its an effort to keep talking long enough to prevent a vote on a bill.