A word originating from South African trance community,coined to distinguish the difference between a jock and what is now known as a tjock, or Trance Jock as it was found inappropriate to stereotype a jock which is actually an athlete. It is any ill minded person , with no P.L.U.R towards anything in life , with no light in his soul, or just straight in plain afrikaans, 'n naier wat nie hoort.
The "Tj" in Tjock, is pronounced like the "ch" in "church
What a tjock
He is such a tjock