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1.
Something that acts the opposite of Viagra.
1. An ugly woman.
2. Your wife after putting on a bunch of pounds and/or years.
3. When you're having sex and she says or does something to kill the mood.
Damn is she ugly... a real Viagra antidote, man!

He: "oh, yeah... almost there, baby!"
She: "remember you said you'd paint the kitchen tomorrow" or "hurry up, my TV show is on"
He: "crap, forget it, you just gave me a Viagra antidote"
by capryl July 03, 2013