明日やろうは馬鹿野郎 あしたやろうはばかやろう Meanings Expression never put off until tomorrow what you can do today (literally: (he who says) 'let's do it tomorrow' is a moron) Kanji 明 clear 日 day 馬 horse 鹿 deer 野 field 郎 son. Read as ロウ. Word lists Jocular Proverbs Jinuma: Japanese Dictionary · Word lists