Concise Quran Commentary
When they returned to their families they would go back happy with their acts of disbelief and ridicule of the believers.
وَإِذَا ٱنقَلَبُوٓا۟ إِلَىٰٓ أَهْلِهِمُ ٱنقَلَبُوا۟ فَكِهِينَ
and when they went back to their people, they would return exulting.