Ok, so like....last week I totally banged a different girl for five days in a row. Yeah, totally a vaginasty.
by Roback Terner January 12, 2008
A tri-force or "family" of vaginas that you can't control. A bunch of girls that are PMSing or just bitchy in general are a "Vaginasty" vagina+dynasty
by Squidsquirell November 21, 2013
Engaging in copulation with three generations of women of the same immediate family (i.e. grandmother, mother, and daughter)
by Mr. PC29 June 07, 2014