it is another word for benifrends or friends w/benefits.

Me and my friends came up with this word while sitting in the caf one day. one of my friends was lying in a booth and one of my other friends said 'oh you mean your imaginary friend??' and my friend that was lying down in the booth popped up and said 'did u just say vaginary friends' it was hilarious!!
Guy: "I love having benifriends!! Its such a relief!"
Guy's Friend: "Oh you mean you love having vaginary friends!"
Guy: "OMG!! Yes, I love having vaginary friends!!"
by Nefertiri December 1, 2009
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