Mdidi

A vulgar or explicit way to say butt or ass.

Do not say this to anyone or you will be moered. 

You are mad, mdidi wakho. 

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. 

Mr 082

A guy who trended for what was apparently a staged video. He was asked for his number by a woman in a car and he kept saying "082". Twitter gave him the name Mr 082. 

Did you see the Mr 082 video?

Meneer Magongwa

A situation where you don't have money and you have no means of getting it.

I'm so Meneer Magongwa these days.

Mjita

A Kasi term for "guy". The plural will be Majita.

I was just chilling namajita.

My friend

This is a term that refers to the Somali or Pakistani shop owners in South Africa. This term started when these shop owners first arrived in South Africa and they referred to everyone as "My friend". The name was then subsequently given to them.

1. Child: Hi, my friend. How much are your sweets?
My friend: It's 2 bob for one sweet, my friend.

2. No one:
Pakistani shop owner: My friend I am not your friend, my friend.

Mageza

Short for Magezel'empompeni, is a derogatory name used to refer to a taxi driver. The word directly translates to "the one who baths from a tap". The name originates from that stereotype that taxi drivers have a long distance relationship with water.

Abo mageza from Jozi are so rude and funny at the same time.

Mkhaba

A Zulu term that refers to a huge belly, mostly seen in tenderpreneurs. Sotho people can spell it as mokhaba.

Stomach in, chest out. Umkhaba must fall.

Mntase

Short for mntasekhaya. A Xhosa term of endearment for family i.e siblings, cousins or even a dear friend.

- Yho mntase, you should have seen the way he looked at me.

Maga/Mugu

A term used to describe someone regarded as a fool or someone who is very gullible or being conned

My maga promise me hundred thousand Naira