Noun
hwacha (plural hwachas)
(historical) A mid-16th-century Korean weapon that launched a barrage of rockets or arrows at enemies using gunpowder.
The Korean Hwacha is an example of an early weapon system with a resemblance to the modern-day multiple rocket launcher. Source: Internet
May try to get Surly Teenage Boy, author of The Hwacha of Darknessto turn his hand to it. Source: Internet