double y's

when person A is especially excited to see person B, person A greets person B by prolonging the 'y' sound in the common greeting 'hey'
Girl: Hi
Guy: Heyy
Girl: Yay I get double y's
by King142857 February 23, 2009
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the double y theory

the double y theory, is the theory that anyone who types 'heyy' in a conversation, is most likely female.
stranger: heyy
you: you must be a girl
stranger: omg how did you know?
you: the double y theory
by strangeworld April 03, 2010
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