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3.
An expression of the rhetorical nature of a question, suggesting that the askee has to choose between 'yes' and 'yes'.
"I should buy these boots, y/y?"
by rscotland October 24, 2012
 
1.
y/y
Stands for yes/yes, used instead of y/n (yes/no) as a joke that yes is the only answer possible.
bonnie/greta = sea lesbians y/y?
by coellcmu May 24, 2007
 
2.
y/y
Literally, "Yes/Yes?" as opposed to "Yes/No?"

Used when saying something to someone that you already know the answer to or really want that person's answer to be Yes.
Dude, Harry Potter MIDNIGHT SHOWING y/y??
by nytetime October 27, 2010