Idiom of the day : (09 Nov 2017)

✔ A one-track mind



■ Meaning:

If someone has a one-track mind, they spend most of their time thinking about one subject.

■ For example:

  • Brian’s had a one-track mind since he started his own company. All he thinks about now is business and making money.
  • Mark’s upset because Jenny said he’s got a one-track mind and he’s always thinking about sex.