Saying the word "yay" repeatedly (sometimes to the point of annoyment) especially when you are over-excited and hyper.
by ILuvVocab January 11, 2010
Get the yayayayayayayaymug. by LamEs & LamEs February 18, 2017
Get the yayayayayayayaymug. Get the yayayayayayayaymug. Get the yayayayayayayaymug.