kosokoso 

Typically means nonsense in Kamba language of Kenya in East Africa.

Nic: I need to buy a bicycle
Babu: kosokoso, why buy a bicycle. Buy a car.

kosokoso by Sangalala May 25, 2017

kosokoon 

farsi word combination of kos and koon meaning vagina and ass, respectively. Used together can be used to refer to hot girls and other vast applications.

Samuel, bring me two kosokoon.

kosokoon by Siamak November 11, 2008