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1.
(n) A condition that is caused through over penetration of the vagina and anus. As the activity persists, the two orifaces become one.
Ashley has a very large vaganus.
by clownpenis September 19, 2005
 
2.
When a small vagina is savaged by a penis of large girth (cockzilla), this causes the wall between the vagina and the anus to collapse. This creates one hole AKA Vaganus.
I tore that bitch a vaganus.

I'm sure she's got a vaganus.

This vaganus has an echo.

You could live in this vaganus.
by Mike Boom Doom Heath. June 19, 2008
 
3.
The Vaganus is the name given to ones area of skin between ones Vagina (front bottom) and ones Anus (back bottom) this is the female equivalent of the male Gooch.
Male 1 - man i went down on this chick last night

Male 2 - shit yeah what was it like

Male 1 - Sucked balls dude she had a well hairy Vaganus
by Finger Guns January 13, 2011
 
4.
As of or relating to a woman who has a vagina and an anus that are unusually close together. Or just connected.
I had sex with Sally yesterday and I couldn't tell which hole was which.

Dude she had a vaganus.
by JaBlowMyRyan21 October 17, 2009
 
5.
The ripping or purposeful tearing of the skin between the butthole(s) and whoosey-whatsie which effectively creates an elongated vagina or vaginal area, thus creating an indiscernible hole or holes thus becoming a vaganus.
Husband: "Hey doc..Are we going to sever the taint?"
Doc: "Only if necessary and then in that case it will create a vaganus"
by Mrpuddles January 07, 2012
 
6.
Noun. Female genitalia that serves the additional function of excreting feces (shitting / pooping) as compared to a vagina.

Pronunciation: Ver-jay-nus.
Had hot curry last night, my vaganus is on fire!
by maxjustin February 10, 2010
 
7.
(n) The condition of a female's genitals when a part Irish Fireman's large fist has been rammed so far in that the two orifaces merge into one
Mimi formed a single vaganus after Matthew had finished with her
by Bartlett fireman 96 January 08, 2013