Kanabō

The kanabō (金棒^?) was a spiked or studded two-handed war club used in feudal Japan by the samurai. Other related weapons of this type are the nyoibo, konsaibo,tetsubō (鉄棒^?), and the ararebo. Related solid iron weapons with no spikes or knobs are the and the .

Kanabō and the other related types of these club-like weapons were constructed out of heavy wood, or made entirely from iron, with iron spikes or studs on one end. One or both ends of the wooden type clubs could be sheathed in iron. Kanabō type weapons came in all sizes and shapes with the largest ones being as tall as a man and a two-handed weapon while the smaller lighter ones were primarily one-handed and the length of a forearm.

The shape could be that of a baseball bat with a thick heavy end tapering towards a slender handle or they could be straight all the way from the handle to the end. The shaft cross-section could be round (as in a baseball bat) or polygonal; that is, it might be multi-faceted with flat surfaces arrayed around the central axis.

The kanabō was also a mythical weapon, often used in tales by oni (Japanese demon) since they were reputedly extremely strong. Today there is a saying in Japanese: "Like giving a kanabō to an oni"—which means to give an extra advantage to someone who already has the advantage (the strong made stronger). A western rendering might be "like adding fuel to a fire".

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Wikipedia