This word is commonly used in South Africa, idk about other countries but whatever. It basically means f*ck off, or like go away. Just tryna be a little appropriate.
Voetsek or tsek
Example:
Let's say a dog is chasing u neh. Thus normally works at the makhayas. Idk
*A dog chasing you*
You: voetsek !
*The dog either runs away or it catches you and rips your organs apart*
Next example:
Let's say someone said some fuck shit to you neh. Or like they do something stupid to you or something like that idk.
Amo: yoh, look at Bontles forehead! It's descending!
Bontle: mxm.. voetsek.