無我夢中

むがむちゅう

Common word

noun, no-adjective

•

being absorbed in, losing oneself in, losing control of oneself(yojijukugo)

無	nothingness, none, ain't, nothing, nil, not
我	ego, I, selfish, our, oneself
夢	dream, vision, illusion
中	in, inside, middle, mean, center

わたし

むがむちゅう

へや

とだ

I ran out of the room without knowing what I was doing