Definitions of sling:

noun: bandage to support an injured forearm; consisting of a wide triangular piece of cloth hanging from around the neck
noun: a simple weapon consisting of a looped strap in which a projectile is whirled and then released
noun: a highball with liquor and water with sugar and lemon or lime juice
noun: a shoe that has a strap that wraps around the heel
noun: a plaything consisting of a Y-shaped stick with elastic between the arms; used to propel small stones
verb: hurl as if with a sling