According to Merriam-Webster, the definition of FILIBUSTER is:
1. an irregular military adventurer; specifically an American engaged in fomenting insurrections in Latin America in the mid-19th Century
2. a) the use of extreme dilatory tactics in an attempt to delay or prevent action, especially in a legislative assembly; b) an instance of this practice
Let’s use “filibuster” in a sentence:
The key to the filibuster is to continually hold the floor and refuse to yield it to anyone but your supporters.