If you receive a Y chromosome from your father, then your XY pair means you're genetically a male.

CNN: Triple X syndrome

Of the 531K comments that Bluefin tracked around the primaries, 64 percent of that conversation was sustained by XY types.

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The man, known only as XY, issued proceedings against the social networking site after discovering his photograph and threatening comments posted on the page.

BBC: Facebook

For some reason, the streaming service thinks that I might like The Vampire Diaries, that Taylor Lautner vehicle Abduction, and the ABC Family series Kyle XY.

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Female embryos are xx, and male are xy.

BBC: Q&A: Sex selection

Since men die, on average, five years earlier than women, those much bemoaned visits to the doctor for a routine physical must play at least a minimal role in the difference between XX and XY longevity.

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