It's a synonym for awesome,if your girl has a radical vagina it's awesome so when someone is vaginarad they're as awesome as your girl's radical vagina.
When your wife will not give it up for weeks no matter what youve done.
Another word for Barricade.
Another reason why guys like to look at Jenna Jamison.
Also the reason why internet porn is so popular.
So uhhhhhhh, wanna do it.
Nahh, Ive got a headache
Nahh, Ive got a toothache
Nahh, My hair hurts tonight
That woman is blocking you with a Vaginacade...
Short-hand for the word floccinaucinihilipilification, meaning the estimation of something as valueless (encountered mainly as an example of one of the longest words in the English language).