Lajatang ?

[Queequeg]

Greetings,

Recently I heard of a weapon called a "lajatang". It's supposed to be some kind of pole weapon with a crescent-shaped blade at each end, sharp points facing outward:


When I google this, most of the search results are for fantasy rpg games, which leads me to believe that:
a) it's a fantasy weapon which didn't exist,
or
b) perhaps it does/did exist, but the pinyin spelling may be different

I have seen plenty of monk's spades before, which are half-lajatang:
, so the notion of replacing the spade at one end with another crescent blade doesn't seem that far-fetched.

Has anyone seen or heard of a lajatang before? They seem like very interesting and intimidating weapons.