Here are some possibilities:
* "Kouskouss" is a type of couscous, a staple food in North Africa, made from semolina. This is the closest match phonetically.
* "Kouskous" is another variation of the spelling for couscous.
* "Cuckoos" are a type of bird known for their distinctive call. This might be a misunderstanding or a humorous play on words.
* "Cuckoo" is also a slang term for a person who is considered foolish or eccentric.
Without more context, it's difficult to determine the exact meaning of "coucoushka." If you provide more information, such as where you encountered this word, I might be able to give you a more accurate answer.