What does bold Y feeling mean?

bold Y feeling meaning in Urban Dictionary

the impression of pure and total euphoria of witnessing a striking Y which denotes a proper response on CAPA (McMaster college's internet based physics research projects). A feeling of such pure and complete glee of getting overcome a seemingly impossible challenge, and experience as if you could do just about anything else, because you got a striking fucking Y on capa, and you are a mother fucking wizard.