Fool (Fool/dummy) For example: "Yu na mumu! (You're a fool!)"

Where does the slang word Mumu come from?

Mumu is a slang term from Sierra Leone. It is part of the rich slang vocabulary used in Sierra Leone and across Africa.

Mumu

🇸🇱 Sierra Leone Slang

Added Apr 06, 2026 · 1 definition

TOP DEFINITION

Mumu definition 1

Fool (Fool/dummy)

"Yu na mumu! (You're a fool!)"

by Khulekani Dladla Elder · Apr 06, 2026

Word Details

Country: 🇸🇱 Sierra Leone
Definitions: 1 community definition
Added: April 2026

↻ Similar Words

Mumu 🇳🇬 Nigeria

Means a fool, simpleton, or foolish. It can be an insult or teasing among friends

"See as you give conductor all your change – you be mumu? (See how you gave the bus conductor all your change – are you s…"

Mumu 🇬🇭 Ghana

Deaf and dumb/Very stupid (Extremely stupid person)

"You be mumu or what? (Are you stupid or what?)"

🇸🇱 About Sierra Leone Slang

Sierra Leone slang captures the everyday language, street expressions, and cultural vocabulary of its people.

KASINARY has 1301 Sierra Leone slang words collected from native speakers.

Browse all Sierra Leone slang (1301 words)

🌍 "Mumu" Across Africa

This word is also used in 2 other countries, sometimes with a different meaning.

Mumu 🇳🇬 Nigeria

Means a fool, simpleton, or foolish. It can be an insult or teasing among friends

Mumu 🇬🇭 Ghana

Deaf and dumb/Very stupid (Extremely stupid person)

🇸🇱 More Sierra Leone Slang

E nor so It's not like that (It's not like that) Plant fam → Plant farm Mek gadin → Make garden Yunɛmplɔymɛnt → Unemployment Nɔ wok → No work Collaborate Work together (Collaborate) Dizayn → Design Mek fayn fayn tin → Make nice nice things Sugar Sugar (Sugar)

View all 1301 Sierra Leone slang words

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Girlfriend/boyfriend (Babe/dear)

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