wolf hook

A thunderbolt drawn as a straight-edged runic s with a horizontal bar in the middle and the ends angled at 90 degrees centerwise, especially a Nazi one.

(historical) A kind of trap used to catch wolves, consisting of an upper part resembling a crescent moon, meant to be fastened between tree branches, and a lower part (connected by a chain) in the form of a double hook, meant to be covered with meat and swallowed by a wolf.

(by extension) A kind of modern-day assault rifle handle in a similar shape.