on the/(one's) brain

(redirected from on your brain)

on the/(one's) brain

Occupying one's sole or most prominent attention or interest; forming an obsession or preoccupation for one. Tom's just got football on the brain—he's not really interested in anything else. The history of this town has been on my brain ever since high school, so I'm delighted to finally have a creative outlet to explore those ideas.
See also: brain, on
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

on the brain

Obsessively in mind: The coach has winning on the brain.
See also: brain, on
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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