"chop/tjop" – it literally means a piece of meat ("pork chop" or "lame chop") that you would often cook on a braai. If you can call someone a chop it means they are being silly or an acting like an idiot, "Don't be a chop". Calling someone a chop often does not mean any harm, it is a light and playful insult and this word is most commonly used in a friendly way between associates. It can also be meant in a teasing way, like "dont be silly". https://en.wikipedia.org/wiki/List_of_South_African_slang_words