"Then they will be thrown into it [Hell]," meaning: they will be cast into it; that is, the polytheists. "They and the deviants," meaning: the devils.

Muhammad said: "Fukubkibu" (they will be thrown) has its origin in "kubbibu" (they were cast), from your saying: "kababtu al-ina'a" (I overturned the vessel). The middle 'ba' was replaced by a 'kaf' due to the burden of having three 'ba's appearing consecutively.