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

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But treatment, which typically involves medications to block the hormone testosterone, can have adverse effects on the brain and body. Brenda Goodman, CNN Money, 20 May 2025 Doctors have her that the baby, a male, has an unknown amount of fluid on the brain. Nick Mordowanec, MSNBC Newsweek, 14 May 2025 If spring cleaning is on the brain, swap your clunky old gadgets for more efficient tools, like this Bissell cordless vacuum that works on all floor types, or this Roomba robot vacuum that doubles as a mop. Clara McMahon, People.com, 3 May 2025 Richard Stephens is a senior lecturer in psychology at Keele University in the U.K. and has studied and written about the effects of speed on the brain. Ben Oliver, Robb Report, 27 Apr. 2025 See All Example Sentences for on the brain

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“On the brain.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/on%20the%20brain. Accessed 3 Jun. 2025.

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