Fetish involving someone going through a woman's vagina and into the womb, usually coming back out later on. Pretty obviously restricted to cybersex and fantasy art or writing.
by Carne Largo October 16, 2003
The act of being “put” or putting ones whole self inside an available vagina.
Cedric was once again hammered upon his return home, Sandra took one look at him and swallowed him with her gash! An unbirth reckoning and no mistake!
by Voidy July 18, 2019
A person being shoved in a vagina whole
I love unbirthing
by dragonbutts March 31, 2016
When someone forcibly gets suck back into their mother's womb. It's like a black hole, but worse.
I didn't like Frank, so he forcibly unbirthed himself.
by Merciless_Ghost February 19, 2018
A mysterious new enemy from Kingdom Hearts: Birth by Sleep. All we know is that they move fast, are blue, and have piercing red eyes.
"What are the Unbirth?"
by Grimrock August 3, 2008
Fetish of an adult head inside a vagina. Term was created a few decades ago when the fantasy of unbirthing was broken down into total and partial types with partial unbirthing being the only remotely possible form of the unbirthing fantasy. Even then it is an extremely rare activity and the practice of partial unbirthing, as opposed to the fantasy, is not a form of Vore.
See a google search for partial unbirthing
by A. Akam September 23, 2007