"took my catapult from my belt"
Catapult - aka Slingshot - Credit: Yug
This is in reference to the slingshot, a handheld version of the catapult. It has a frame shaped in a "Y", and the uprights have two rubber strips attached to them. Between the strips is a pocket, in which the projectile is placed. The power in the slingshot comes when the non-dominant hand extends the "catty" at arms length. The rubber strips and pocket are then pulled back by the forefinger and thumb of the dominant hand, aimed and released. Using the word "catapult" sometimes confuses this item with the military reference.