The feeling of having already seen this vagina before.
I was banging this chick the other night and it was like Déjá vag, all over again! Maybe she has a twin.
2 more definitions
When you could SWEAR that you've been there and done that with a girl.
It started to get hot, but i had to stop. I realized I had done her before, it was total De ja Vag.
wootwoot tayhaterによって 2010年10月14日(木)
Realizing the morning after a drunken sex romp that you have already had sex with the same guy in the past.
"I rolled over and had a major case of deja vag...I totally fucked this guy over Spring Break!"