A friend loaned me a book called Kif-kif Demain when I was interested in reading some French.While I looked at the regional variants of the main element of the above compound and saw that the Moroccan pronunciation was kīf, it dawned on me that the French expression "kif-kif" must come from there. And, sure enough, it does: https://en.wiktionary.org/wiki/kif-kif