look up any word, like blumpkin:
 
1.
1.) The formation of a woman's vagina from the rear in her panties.

2.) The view of a woman's vagina from rear entry without the panties on.
Damn, when I saw her video on YouTube I had to masturbate. Her back snatch was so revealing i didn't need to see it.
by Perfect.Storm. November 17, 2011
 
2.
The formation of a vagina due to the excess on a person's back.
Damn, that girl is so fat that i could fuck her back snatch!!!
by fuckthatback September 20, 2010