Chiburui (血振るい?), also called chiburi, is the process by which one symbolically removes blood from a sword blade. The term chiburui can thus be translated as "shaking off the blood". In the Japanese martial art of iaidō, this is done before placing the blade back into the scabbard (known as nōtō).
↑Please note, however, that chiburi is a slang pronunciation and as such is not found in any Japanese dictionary. See Iwata.