A "filibuster" is a procedural tactic used in legislative bodies to extend debate on a piece of legislation, effectively delaying or preventing a vote. This strategy allows a minority group in the legislature to exert influence over the legislative process by prolonging discussions, often in an attempt to garner more votes or modify the proposal. In the U.S. Senate, a filibuster can require a supermajority to close debate, emphasizing the importance of minority rights in governance. However, it can also lead to legislative gridlock, showcasing the balance between a functioning democracy and the need for effective governance.