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
Cough Suppressants Dextromethorphan is a cough suppressant that acts on the brain to reduce coughing.
—
Karen Berger, Verywell Health, 5 Feb. 2026
As marijuana's potential health benefits are under debate, new research has found that THC could have a powerful and positive effect on the brain.
—Angelica Stabile, FOXNews.com, 4 Feb. 2026
Justin Grant had Tedy Bruschi on his back and Brock Osweiler on the brain.
—Sean Keeler, Denver Post, 25 Jan. 2026
How to wind down Evidence suggests that mental relief comes not from adding new coping strategies, but from reducing the number of demands placed on the brain.
—Robin Pickering, The Conversation, 21 Jan. 2026
See All Example Sentences for on the brain
Examples are automatically compiled from online sources to
show current usage.
Read More
Opinions expressed in the examples do not represent those of Merriam-Webster or its editors.
Send us feedback.
Karen Berger, Verywell Health, 5 Feb. 2026
As marijuana's potential health benefits are under debate, new research has found that THC could have a powerful and positive effect on the brain.
—Angelica Stabile, FOXNews.com, 4 Feb. 2026
Justin Grant had Tedy Bruschi on his back and Brock Osweiler on the brain.
—Sean Keeler, Denver Post, 25 Jan. 2026
How to wind down Evidence suggests that mental relief comes not from adding new coping strategies, but from reducing the number of demands placed on the brain.
—Robin Pickering, The Conversation, 21 Jan. 2026
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 10 Feb. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
