A warm, affectionate British term for your grandmother — the granny who bakes biscuits, watches the telly with you, and always has a story. Mostly used in the UK and by children, though adults use it too when they want to sound especially fond. It's the softer, cuddlier cousin of 'grandma' or 'gran', loaded with nostalgic warmth. Totally standard informal usage — nothing edgy about it, just very British and very sweet.
Add your own interpretation of "grandmummy".
UK and Irish slang — Cockney, Scouse, Geordie, Yorkshire, Glaswegian, Brummie, Welsh, West Country, plus Irish English. Centuries of regional dialects feeding into modern British and Irish street talk.
See all British & Irish slang slang on Slangora.
Browse all slang words starting with G.
She spent every half-term holiday at her grandmummy's house in Yorkshire.
No comments yet — say something.
(UK, informal) grandmother.
No comments yet — say something.