其奴[soitsu] that person (guy, fellow)
何奴[doitsu] who?
黒奴[kokudo] black person
守銭奴[shusendo] miser

奴隷[dorei] slave
農奴[noudo] serf
売国奴[baikokudo] traitor (to one's country)
彼奴[aitsu] he

一か八か[ichikabachika] sink or swim
嘘っ八[usoppachi] downright lie
嘘っ八百[usoppappyaku] full of lies
嘘八百[usohappyaku] full of lies
八釜しい[kamabisushii] noisy

口八丁[kuchihacchou] voluble
三十八度線[sanjuuhachidosen] the Thirty-eighth Parallel
四苦八苦[shikuhakku] being in dire distress
四通八達[shitsuuhattatsu] traffic network extending in all directions
四方八方[shihouhappou] in all directions