Cutlass

The Cutlass is a rare Hardmode sword that has a chance to be dropped by Pirate enemies in a Pirate Invasion. It has a higher chance to drop from Pirate Captains and the Flying Dutchman (2% and 10% respectively). The Cutlass deals good damage and can be swung continuously at very high speed.

Trivia

 * It has a dark outline and transparent pixels in its blade, so it looks deformed against dark backgrounds.
 * It resembles a scimitar rather than a cutlass.
 * Terraria does have a scimitar in the game dropped by the Dye Trader, the Exotic Scimitar, which resembles the Cutlass.
 * It may be a reference to Zulfiqar, the legendary sword owned by Ali, due to its forked design.
 * It can almost be considered an upgrade of the Falcon Blade, sharing many of the same features, pros and cons, as well as the similar designs.