大馬鹿 おおばか Also written 大バカ Meanings Noun, な-adjective extreme foolishness; grave stupidity Noun big fool; damn idiot; utter fool Kanji 大 big. Read as おお. 馬 horse 鹿 deer. Read as か. Words containing 大馬鹿 大馬鹿者 (おおばかもの) utter fool Jinuma: Japanese Dictionary · Word lists