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.

Sandile

A very cool humble guy whom everyone thinks his hot, attractive and liked by many.

My crush is Sandile

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. 

Xhosa

That South African language with all the clicks. The people who speak this language think they breathe flavoured air

No one: Thabo: I only date Xhosa chicks even though I know they will suck me dry.

With immediate effect

If you say that something will happen with immediate effect or with effect from a particular time, you mean that it will begin to apply or be valid immediately or from the stated time.

No one:

Izapha

A Xhosa term for come here.
The original term is "Yiza apha" or "Yizapha" but social media people have further shortened it.

No one:
Big Xhosa: A Reece izapha baby girl.

Jollofina

Jollofina is a name given to South African women who are dating Nigerian men.

She has all this money because she's dating Jollof boys. She's a Jollofina.

Dese

A Sepitori term for good, beautiful... anything great. You may use it to say you are good at something or even use it to say you are beautiful.

Ke dese ka diski unlike Bafana Bafana players.

Ghost Lady

Ghost Lady is the co-host of the popular South African Podcast called Podcast and Chill with MacG and Sol Phenduka. As the name suggests, she doesn't appear on camera and her real name is unknown, but she plays a major role in the running of the Podcast.

I wish I could see Ghost Lady some day.

Nkabi

A Zulu term for an assassin or hitman (a person hired to kill another person or a group of people), very popular in the KwaZulu Natal province.

They hired inkabi to kill him but he survived.