Dining at the Y
A euphemism for performing oral sex, usually cunnilingus, as others have mentioned. "The Y" is also a nickname for the YMCA, once a famed hangout for trolling gay men. Also, only men have a Y chromosome, so dining at the Y could also mean fallatio, or perhaps analingus as well.
Dining at the Y by Dickens Heighdor June 4, 2019
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