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1.
A woman having sex with two men at the same time, with both penises in her vagina.
Teri Weigel, ex Playboy playmate was the first to do a double vaginal that I have ever seen.
by rararajaj October 23, 2003
 
2.
A double vaginal penetration of a woman.

Two men having vaginal sex with one women at the same time.
" One time my girlfriend took on both me and my brother "

" That girl needs to dicks in her vagina to please her "

" She could use a double vaginal penetration "
by Bill Abnovsky August 18, 2006
 
3.
A woman having intercourse with two men simultaneously.
I can't believe a woman can do a double vaginal!
by howwie March 06, 2006