He has a one-track mind and only talks about football.
one-track mind
idiomThat said to be possessed by someone who is obsessed with something or only able to think of one thing.
Stop asking about the project budget; you have a one-track mind today.
Her one-track mind regarding the upcoming promotion prevented her from noticing the growing tension among her colleagues.
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bear in mind
To hold (something) in the memory; to remember; also, to be mindful of or pay attention to (something); to consider; to note.
- 02
blow someone's mind
To astonish someone; to flabbergast someone.
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bored out of one's mind
Extremely bored.
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cast one's mind back
To try to remember a particular time or event; to think about something in the past.
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change one's mind
To decide differently than one had decided before.
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change someone's mind
To convince someone to make a choice or develop a preference differing from their previous one.
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close one's mind
To refuse to understand things.
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come to mind
To appear in one's thoughts.
Last updated April 17, 2026