This is a South African slang word for "relationship". (sometimes it's used with "u" as a prefix = "umjolo", which means the same thing. They can be used interchangeably)
Thato: I can't believe she cheated on me
Sade: that's mjolo for you bro. It's hard

Naomi: Yoh I wish I was within umjolo, being single is hard.
Sade: Don't be fooled. Mjolo is not for everyone.

Thandeka: I didn't know umjolo was this nice
Vusi: the same mjolo that I know? It'll fuck you up

Lerato: umjolo is not for the weak
Denise: and its definitely not for the poor either

Busi: How's mjolo treating you?
Siya: can't you see my face glowing?
by MzansiSlangist August 2, 2020
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A very dangerous activity which can lead to various disasters e.g. death, severe embarrassment, utter heartbreak, the lack of Will to go on in life, trust issues, depression, etc.

In other words, mjolo is dating, romance, love, you get the idea.
Boy 1: Ekse what's wrong with Sally?
Boy 2: Yoh I heard Tommy dumped her. Entlek we tried to tell her mjolo was a satanic activity.
by Iwannaberich123 April 10, 2022
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Mjolo is the south african way of saying you're in a dating relationship
Cheeseboy: Are u gonna get in Mjolo
Me: Mjolo??? That shit is not for me
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