From the Dutch phrase "Voort seg ik!" literally meaning "Forward say I!". It was then adapted by South Africans into voetsek, and then eventually "footsack" in English.
It was originally meant for dogs, but is now fairly commonly used against people as well, although in this context it's meant as a light-hearted "fuck off!"
The most common variation is the abbreviated "tsack", or the colloquial "tsek".
Dopie: Can I have a bite of your hotdog?
Salie: Footsack!
(or, more realistically)
Dopie: Gimme a stuk of your boerewors roll!
Salie: 'tsek!
The feedback one gets from people who tried food prepared by them. Can be both positive and negative. Or simply confusing. Depends greatly on the feedback-giving person. And, of course, on the dish.
April: I love your chocolate cake. Especially the frosting... and the cute, little sugary flowers you put on top...
Maya: Well, thank you for your foodback.
A Shackteau is a humble, weather-beaten, structurally questionable shelter located in a spectacular or highly coveted place—Wales, Jackson Hole, Sun Valley, Crested Butte, coastal Maine, the Alps—where the building itself may be worth almost nothing, but the dirt, view, access, and mythology make it absurdly valuable.
In use:
Shackteâu - We thought it was an abandoned shed until the realtor called it a rare alpine Shackteâu with unobstructed views and listed it for $2million.