The photo shows a man with a serious expression on his face. He's looking down with his head slightly tilted. The joke is: "Kurşun yedim" which means "I ate lead". The joke plays on the common Turkish phrase "Kurşun yedim" (meaning "I was shot") by using the literal meaning of the words. This creates humor by using the phrase in a nonsensical way. It implies that he literally ate lead, which is absurd and funny.