Blast Barrel

The Blast Barrel is a Hardmode bomb dropped by the Wall of Flesh. When thrown, it will roll across the ground and infinitely pierce enemies it comes into contact with until it hits a wall. Upon colliding with a wall, it will explode into shrapnel and fire shards or bounce again then explode. Shrapnel and fire shards inflict the On Fire! debuff.

Performing a stealth strike with the Blast Barrel will cause the next barrel thrown to bounce off of walls 2 times before exploding on the third wall.

Trivia

 * This weapon and its tooltip are a reference to the Donkey Kong game series, which frequently features explosive barrels that launch the player in certain directions, sometimes referred to as "Blast Barrels".
 * The weapon and its description, 'Some people used to jump over these', are a reference to the classic Donkey Kong arcade game, where Donkey Kong throws barrels at the player that they have to jump over.