throwing stick

noun

1. a short, straight or curved stick, flat or cylindrical in form, often having a hand grip, and used generally in preliterate societies as a hunting weapon to throw at birds and small game.
2. Australian. a boomerang.

noun

1. a primitive device for hurling a spear with greater leverage, consisting of a rod with a groove in it and a hook or projection at the back end to hold the weapon until its release