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
Alzheimer’s medicines like Aricept (donepezil) work directly on the brain and help protect the neurotransmitter acetylcholine.9
Drinking coffee with these medications lessens their effectiveness.
—
Sohaib Imtiaz, Verywell Health, 31 Mar. 2025
The long-lasting effects of concussion on the brain have become increasingly evident in recent years, highlighted by scientific research.
—New Atlas, 29 Mar. 2025
The incurable and terminal disease is a rare and aggressive brain tumor found on the brain stem.
—Bryan West, USA Today, 26 Mar. 2025
Rihanna had her kids on the brain during International Women's Day.
—Brendan Morrow, USA TODAY, 9 Mar. 2025
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.
Sohaib Imtiaz, Verywell Health, 31 Mar. 2025
The long-lasting effects of concussion on the brain have become increasingly evident in recent years, highlighted by scientific research.
—New Atlas, 29 Mar. 2025
The incurable and terminal disease is a rare and aggressive brain tumor found on the brain stem.
—Bryan West, USA Today, 26 Mar. 2025
Rihanna had her kids on the brain during International Women's Day.
—Brendan Morrow, USA TODAY, 9 Mar. 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 6 Apr. 2025.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
Share