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the width between the lips of the vagina. often found to be greater, the older and more experienced the woman is.
marc: "hey do you want to come round and play AoE2 tonight?"

callum: "nah, i'm busy pounding your mom"

marc: "mind if i join you?"

callum: "not at all, there's more than enough room, your mom has a mighty vag span."

marc: "yeah well she is a dirty whore."
by staygold47 April 15, 2010