have on the brain

have something on the brain

(informal)

to not be able to stop thinking or talking about one particular thing You've got cars on the brain. Can't we talk about something else for a change?

Name	Pronounced	Usage
Marco	MAHR-ko (Italian, Spanish, Dutch)	Italian, Spanish, Portuguese, German, Dutch
Heledd	HEL-edh	Welsh
Eliisabet	-	Estonian
Nicolae	-	Romanian
Audsley	['ɔ:dzli]
Roparzh	-	Breton