I believe the user simply mistook the name of an esoteric antique weapon no longer used in warfare, from a culture that is somewhat foreign to them, as one might.

This is, to the best of my identification currently, a guandao, or as it was known in its day, yanyuedao, which is considered to be the same general class of weapons as the naginata or glaive.

This one in particular seems to exhibit grip shortening, which is a relatively common but not often talked about historic practice of mounting a polearm blade in a shorter handle for use in close quarters as a type of swordlike weapon.

The practice is documented in guandao and naginata alike. The name may not be accurate, but the design itself is not outside of the range of a historically appropriate make for what it appears to be.