Origin of one-track
Examples from the Web for one-track
"Thank God that thing had a one-track mind, and was concentrating on the spider," said Jim, with a rather humorless laugh.The Raid on the Termites|Paul Ernst
Once his one-track mind got to functioning on a certain objective it seldom digressed.
I must have journeyed on at least three small, one-track railroads after leaving the Pullman at some junction or other.The Best Short Stories of 1920|Various
We parted with mutual benedictions, and John Maxwell and I walked away, toward the one-track road leading to the old mansion.The Telenizer|Don Thompson
They are like a one-track railroad that has been congested with traffic.Humanly Speaking|Samuel McChord Crothers