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.
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.
Add your own interpretation of "grandmummy".
Regional slang from around the English-speaking world — British, Australian, Irish, Caribbean, Nigerian, Filipino, AAVE, and the hyphenated-English dialects that make the internet sound local.
See all Regional & Other slang on Slangora.