final smash
The most powerful attack a character can do in Super Smash Bros Brawl. It can only be used when the character shatters a smash ball. The final smash usually scares the crap out of everyone else playing.
Player 1: "Oh yeah, I just got a smash ball! You ready for my final smash??"
Other Players: "Crap..."
Other Players: "Crap..."