From the context it appears to mean “cum in,” and your friend is suggesting that the girl engages in a variety of sexual acts. “She can pretty much [take it in]. 15 Sep Dining At The "Y" Eating a female out. With her legs spread - she is in the shape of a Y. This local escort promised a full GFE including DATY. 15 May View a list of acronyms and abbreviations. Esc - Escort ESI - Environment and .. WMRS - White Mountain Research Station WPC - Word.