1 definition by Jerbear1991

Top Definition
Having a great amount of excitement. So much, that you act crazy, jump around, get in others faces, and may foam at the mouth, relating this crazy to having rabies. Can be contagious.
"Woo! I caught the yaybies while planning my birthday night!"
#excitement #birthday #happy #crazy #rabies
by Jerbear1991 December 23, 2012
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