DATY is a slang term that stands for "Dining at the Y" and refers to performing oral sex on a woman with her legs spread-(DATY).html). It is an acronym that is commonly used in prostitutes advertisements. The origin of the acronym is unclear, but it is believed to have emerged with the rise of social media. The term is considered vulgar or inappropriate by some people, while others use it as a playful or flirtatious way of expressing their desires.