If you mean the Farsi phrase 'khoob asti', it literally means "are you alright".
There's a documentary film in 2007 titled Khoob Asti Afghanistan? (Are You All Right Afghanistan?). It's about the personal journey of Indian director Soumitra Ranade, who spent his teenage years in Kabul. He returned to India in 1980 and had not returned to Afghanistan until 2007, when he made this film.
Persian Language, also known as 'Farsi', is the most widely spoken member of the Iranian branch of the Indo-Iranian languages, a subfamily of the Indo-European languages. It is the language of Iran (formerly Persia) and is also widely spoken in Afghanistan and, in an archaic form, in Tajikistan and the Pamir Mountain region.
Discover surprising and revealing facts about Persian (Farsi), including Persian words used in the English language and Persian jokes and quotes at Bbc.co.uk.