Mzansi Taal
Biscuit
Adjective
1. Used to show affection to someone.
“Jaco my biscuit.”
2. It can also be used as a noun to refer to a spare wheel.
It is believed that it is called biscuit because of its slender shape, with no rim.
“You can’t drive too long with a biscuit.”
Biscuit is also referred as a woman’s privet part
I know we use this term to reference female genitals.