All idioms
idiom

on the brain

ON thuh BRAYN

ɒn ðə breɪn

Listen

Hear it in a clear American voice. Slow it down to catch each syllable.

Syllable breakdown

onthebrain

Dictionary meaning

an informal idiom meaning to be constantly thinking about something, to have a particular thought, desire, or preoccupation occupying one's mind to the point of near-obsession; when something is on the brain it dominates one's thinking in a way that is noticeable even when one is trying to focus on other matters — she had the deadline on the brain all weekend; the idiom emphasises the involuntary, persistent quality of the preoccupation, suggesting that the thought is not merely being considered but is lodged in the brain in a way that resists dismissal; similar expressions include can't stop thinking about and have on one's mind, but on the brain carries a slightly stronger implication of fixation or even mild obsession; the phrase is used for both negative preoccupations such as worries and positive ones such as excited anticipation, and is frequently applied to food cravings, romantic interest, and impending events

People also look up

Break the ice

Brayk the ice

Hit the nail on the head

Hit the nayl on the hed

Under the weather

UN-der the WETH-er

Piece of cake

Peess of kayk

Learn one new pronunciation a day

Get a word, name or idiom like “on the brain” in your inbox — daily or weekly, free. Unsubscribe any time.

Something wrong? Suggest a correction