Bohemian earspoon

The Bohemian earspoon (German Böhmischer Ohrlöffel or Knebelspiess, Czech ušatá sudlice) is a polearm featuring a long, broad, socketed with two out-turned lugs (sharply bent hooks, straight spikes, or triangular guards) at the base of the head, forming a guard similar to that of a boar spear. The guard prevented the weapon from penetrating too deeply into a target, so that it could quickly and easily be removed and used to attack another target.

Derived ultimately from the early Medieval lugged spear, the earspoon developed in the 14th century. Its use was probably not confined to Central Europe. It was used for both hunting and military purposes.

...
Wikipedia