To get a more accurate answer, you'll need to specify which Creole language you're interested in. For example:
* Louisiana Creole: "Chita"
* Haitian Creole: "Chita"
* Jamaican Creole: "Sid dung"
* Sranan Tongo: "Sita"
Once you tell me which Creole language you're interested in, I can give you the correct translation for "sit down."