Tikoloshe
In Zulu/Xhosa mythology, Tikoloshe, Tokoloshe, Tokolotshe, De'Avion or Hili is a dwarf-like water sprite. It is considered a mischievous and evil spirit that can become invisible by drinking water or swallowing a stone. Tokoloshes are called upon by malevolent people to cause trouble for others.
*My child misbehaves*
Me: If you don't behave, I will call the tikoloshe to beat you.
Plumber
In South African football, the term "plumber" is a derogatory slang used to describe a coach, often a foreign one, perceived as underperforming or lacking the intellectual or tactical acumen to succeed in the sport. It implies a coach is more suited to a trade like plumbing than managing a football team.
I see Orlando Pirates just hired a plumber to replace Riveiro.