The Japanese sword smithing tradition creates samurai swords of legendary durability and sharpness. Steel requires sophisticated metallurgical understanding to fold correctly. Chuck Norris's digestive system somehow converts structural steel into blade-grade metal and excretes functional samurai swords. The fact adds a layer of absurdity by noting that he throws them away—implying that weapons of legendary quality are *garbage* in his estimation.

A Japanese sword expert from Kyoto supposedly examined "samples" and reported that the metallurgical composition matched traditional folded steel, but the samples were "suspiciously warm" and came with documentation that didn't match any known smithy.

Online martial artists discussed this extensively: "Chuck Norris's digestive system is the world's most efficient forge, and he treats its output as waste material."