mooning about
слоняться без дела
https://studyenglishwords.com/book/%D0%9F%D0%BE%D0%B2%D0%B5%D0%BB%D0%B8%D1%82%D0%B5%D0%BB%D1%8C-%D0%BC%D1%83%D1%85/388?page=53
