Kganthe why?
It's a combination of two words, Sepedi and English, by Mogau Samson Leagathoko Malepe asking someone to rephrase their statement, or tell, "I don't vibe with you" or "I don't follow".
"Bra, I've been looking for you all-over, where did you dissappear to?"
MSL Malepe: "Kganthe why?(with an annoyed lookalike face)"
Kabo yellow
Kabo yellow is a nickname for South African soccer team Mamelodi Sundowns. Their home kit is yellow so I am guessing that's where the name comes from.
Q: Which team do you support?
A: Kabo yellow
Kiss Madolo
This is what educated people call "knock knees". When a person is standing and his/her knees (madolo) are touching (kissing).
It can also be called a kiss kiss.
He can't run because he has kiss madolo.
Kwerekwere
A derogatory term for foreigners in South African slang, particularly foreigners from African countries.
Can also be spelt as Kwirikwiri or kwarakwara.
Stop calling foreign people kwerekwere!