The photo shows a brick wall with graffiti. The graffiti says "Aranı Üyün... Farzet Ki..." and "Sormüyün". The joke is a play on words that makes fun of the way some people talk. The word "aranı" is meant to be "aranız" (meaning "between you"), but the person writing the graffiti has misspelled it. They have also misspelled "farzet" as "farzet ki" and "sormuyun" as "sormüyün". The joke is that the person writing the graffiti is pretending to be smarter than they are by using more complex language, but they are actually making multiple mistakes. The joke is also funny because it is based on a common experience – everyone makes mistakes when they're speaking or writing, and it's often the people who try to sound fancy who make the most mistakes.