Someone who is only interested in vaginal sex and other vaginal sexual actvities( and not anal).
(Mark and Holly are under the covers doing the oldest dance in the universe(Dude, they're fucking)

Holly:"OH Mark! Right there! Yeah! Now put it in my butt!"
Mark:"How about I go down on you? Sounds better doesn't it?"
Holly:"Come on Mark, don't be such a Vagigan!"
by Neil Gaiman fanboy August 15, 2018
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