on the brain
idiom
informal
: always in one's thoughts
I've had pizza on the brain all day.
He's got sex on the brain.
Examples of on the brain in a Sentence
Recent Examples on the Web
The rapper announced the happy news on Instagram, sharing with his followers that their baby girl came into the world surrounded by the soothing sounds of 432 Hz music, which is said to have a calming effect on the brain and nervous system.
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Sophie Dodd, People.com, 18 June 2025
But is that good enough for a fan base that’s already got Pac-12 on the brain?
—Troy Renck, Denver Post, 16 June 2025
That improvement had a positive effect on the brain in general.
—Literary Hub, 12 June 2025
So far, most of what’s known about the substance’s effects on the brain comes from studies in rats and in cells grown in a lab dish – not in people.
—Lorne J. Hofseth, The Conversation, 3 June 2025
See All Example Sentences for on the brain
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Sophie Dodd, People.com, 18 June 2025
But is that good enough for a fan base that’s already got Pac-12 on the brain?
—Troy Renck, Denver Post, 16 June 2025
That improvement had a positive effect on the brain in general.
—Literary Hub, 12 June 2025
So far, most of what’s known about the substance’s effects on the brain comes from studies in rats and in cells grown in a lab dish – not in people.
—Lorne J. Hofseth, The Conversation, 3 June 2025
See All Example Sentences for on the brain
Cite this Entry
“On the brain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20the%20brain. Accessed 1 Jul. 2025.
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