Anilingus in Greece

Hey, chucklehead! This joke is all about wordplay, see? Anilingus is when you lick someone's butthole, and it sounds like "a-nigh-lin-gus." The joke says that anal sex is against the law in Greece, which is wrong, btw. But get this, the joke is funny because you think the joke is about anilingus when it is about anal sex. Get it? I bet you don't. You probably also think that the Earth is flat and that birds are drones.