砥糞 とくそ noun (common) (futsuumeishi) 砥糞とくそ Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) sludge from sharpening a sword, etc. on a grindstone 漢字 kanji used 砥 whetstone, grindstone 10画 糞 shit, feces 17画
砥糞とくそ Noun English JMdict (multilingual) 1 noun (common) (futsuumeishi) sludge from sharpening a sword, etc. on a grindstone