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gob off

British slang meaning to gossip, blab, or talk loudly and at length about things that aren't your business.

ˈɡɑb ˈɔf139 viewsLast reviewed Jun 29, 2026+ Add a definition
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#1·Apr 28, 2026

British slang meaning to gossip, blab, or talk loudly and at length about things that aren't your business. To gob off is to let your mouth run without much filter — whether that means spilling someone else's secrets, mouthing off to an authority figure, or just filling dead air with endless chatter. 'Gob' is already British slang for mouth, so 'gobbing off' is essentially the act of letting that mouth run loose.

Don't tell him anything sensitive — he'll gob off to the whole department before you're out the door.
Origin: From 'gob,' British and Irish slang for mouth (likely from Gaelic 'gob,' meaning beak or mouth), with 'off' used as a verbal intensifier in the sense of firing off or going off. Editorial expansion authored on Slangora.
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#2·Apr 27, 2026

(UK, slang) To gossip; to chat idly.

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