One-Track Mind, Single Mindedness
noun, な adjective
You have only one book energy. No other books cross your mind. Only this one book. Why? Because you have such a one-track mind.
いっぽんぎ
The reading is based off the on'yomi readings for everything, though every reading is slightly altered. いち getting shortened to いっ, ほん changing to ぽん, and き gets changed to ぎ. They're based off the readings you know already, though, so making this shift shouldn't be too hard... that is, unless you have an 一本気, ammiright?
ニックって一本気なところがあるよね。
There's a single-minded side to Nick.
コウイチは一本気な男だ。
Koichi is a man with a one-track mind.
おじいちゃんは、百才になった今でも、おばあちゃんのことを「オレの大切な女」ってよぶんだ。ほんと一本気な男だよ。
Even now at the age of a hundred, Grandpa still calls Grandma "my precious woman." He's such a one-track-minded man.