Nkunzi

Nkunzi is a Xhosa term for a male animal. It is also often used to refer to a person, obviously male.

Ndifuna ukuthetha inkunzi yebhokhwe.

I want to buy a male goat.

Hoezit

Slang word for "how is it". It comes from the Afrikaans term "Hoe is dit" and people just decided to change the spelling.

Man 1: Eita da, hoezit?

Zimbabwe

A Southern African country with Victoria Falls, rich mineral resources, and economic challenges.

Zimbabwe's Great Zimbabwe ruins are a UNESCO World Heritage site from an ancient civilization.

Dar es Salaam

Tanzania's bustling port city and gateway to Zanzibar.

Dar es Salaam's Kariakoo market is the busiest in East Africa.

Zuka

A term we used to use back in the day to refer to the 50c coin. Ama2000 would not know it.

No one:

5 year old me: Ndicela noba yi zuka to buy sweets.

Nguni

Nguni, cluster of related Bantu-speaking ethnic groups living in South Africa, Swaziland, and Zimbabwe.
They speak Xhosa, Zulu, Swati and Ndebele.

We should unite as Nguni people and stop this tribalism.

Mjolo

Mjolo basically means dating. It's derived from ukujola which means to date. Therefore mjolo is the act of dating (ukujola).

Other people may spell it as mojolo

Mjolo will nyisa you. 

Azithi dadobawo

Is a colloquial Xhosa term for crazy or mentally disturbed.
It is mostly used as an insult.

Ingathi azithi dadobawo pha apha kuwe wena.

Jiki jiki

Jiki jiki means all of a sudden or suddenly.

When we were growing you were dark, jiki jiki you are a yellow bone.

Masepa

Masepa mean SHIT in South African seSotho languages (SeSotho, SeTswana, SePedi).
Can also be used to refer to a beautiful lady as in like "Ngwanola ona le masepa"
The other term can be used to insult someone as in like "O mpotsa masepa sarn"
Also see Masimba

O mpotsa masepa.

MacG

MacG is a South African DJ and Podcaster who runs the biggest podcast in Africa called Podcast and Chill, alongside Sol Phenduka and a host whose name is not revealed (referred to as the "Ghost Lady").

He owns the YouTube channel, MacG that has over a million subscribers.

Did you see who MacG was interviewing today?