Grigamba
Grigamba is a derogatory term used in South Africa to refer to a foreigner.
She really likes going out with ama grigamba.
Phuza face
It's the face of a person who has been drinking for a long time / a drunkard. That face that looks like leather.
This person is old, can't you see that phuza face?
Sierra Leone
A West African country recovering from civil war, known for diamonds and beautiful beaches.
Freetown, Sierra Leone's capital, was founded as a home for freed slaves.
Kale Bwangu
A phrase used to describe something that is very old or "old school." It's often used humorously to tease someone for wearing outdated clothes or having an old phone.
Look at that old phone. That's so kale bwangu!
Africtionary
Africtionary is an online dictionary dedicated to African slang. It aims to document and preserve the diverse and evolving language of the African continent.
I found the definition on Africtionary.