He barely had time to wonder when he’d see it again when they were back George had forgotten his box of Filibuster fireworks.
Fred and George rounded off the evening with a display of Filibuster fireworks; they fiIled the kitchen with red and blue stars that bounced from ceiling to wall for at least half an hour.
Harry ducked swiftly down behind his cauldron, pulled one of Fred’s Filibuster fireworks out of his pocket, and gave it a quick prod with his wand.
The firelight glowed over the countless squashy armchairs where people sat reading, talking, doing homework or, in the case of Fred and George Weasley, trying to find out what would happen if you fed a Filibuster firework to a salamander.
In Gambol and Japes Wizarding Joke Shop, they met Fred, George, and Lee Jordan, who were stocking up on Dr. Filibuster’s Fabulous Wet-Start, No-Heat Fireworks, and in a tiny junk shop full of bro ken wands, lopsided brass scales, and old cloaks covered in potion stains they found Percy, deeply immersed in a small and deeply boring book called Prefects Who Gained Power.
They played Exploding Snap, set off the very last of Fred and George’s Filibuster fireworks, and practiced disarming each other by magic.
There are no more uses of "filibuster" in the book.
Show samples from other sources
They threatened a filibuster to defeat the legislation.
After the 2008 elections, the Democrats had a filibuster-proof majority in the Senate.