The inability of the female human to simply STFU. It is a gender specific disorder that strikes 100% of women, yet the sufferers of YVS are 100% male. Symptoms are deep single breaths in between strings of words and the afflicted men replying in grunts. Aha, um hmm and yes - no replies are all that is possible because the men cannot get a word in.
Does Kate EVER STFU? Naaaah, man. She's got Yappy Vagina Syndrome.
by Joeydego December 9, 2011
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