Have something on the brain
phrase
To be continually thinking about something, usually something that is of great interest or concern.
He has been having the upcoming exams on his brain for weeks now.

Often appears as...
- have exams on the brain
- have work on the brain
Usage tips
Idiomatic
phrase
To be continually thinking about something, usually something that is of great interest or concern.
He has been having the upcoming exams on his brain for weeks now.

Often appears as...
- have exams on the brain
- have work on the brain
Usage tips
Idiomatic
Definition 1 of 1

Sustained Focus
Use when someone can't stop thinking about one topic over a long period.

Lisa has had wedding plans on the brain for months now.
Emotional Weight
The phrase often suggests that the thought comes with worry or excitement.

Ever since the promotion talk, he's had the job on the brain.
Informal Use
It's casual and more suitable for conversational contexts, not for formal writing.

You really have soccer on the brain, don't you?
Sustained Focus
Use when someone can't stop thinking about one topic over a long period.

Lisa has had wedding plans on the brain for months now.
Emotional Weight
The phrase often suggests that the thought comes with worry or excitement.

Ever since the promotion talk, he's had the job on the brain.
Informal Use
It's casual and more suitable for conversational contexts, not for formal writing.

You really have soccer on the brain, don't you?
Sustained Focus
Use when someone can't stop thinking about one topic over a long period.

Lisa has had wedding plans on the brain for months now.
Emotional Weight
The phrase often suggests that the thought comes with worry or excitement.

Ever since the promotion talk, he's had the job on the brain.
Informal Use
It's casual and more suitable for conversational contexts, not for formal writing.

You really have soccer on the brain, don't you?
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