The photo shows a group of people dressed in traditional Turkish clothing. The man in the center is wearing a fez and is giving a thumbs up. The joke is that the man is wearing a fez, which is a traditional Turkish hat that is often associated with being old-fashioned. This is funny because the man is clearly not old and is trying to be trendy. The Turkish joke could be: "Şu adamın fes takması ne kadar komik! Çok modern görünüyor ama yine de fes takmış." This translates to "How funny is it that this man is wearing a fez! He looks very modern but he's still wearing a fez."