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1. An extremely smelly, gross, vile, possibly radioactive, dirty vagina that has been stretched beyond belief. Overflowing with semen from multiple men and some horses.
2. A dirty whore with said vagina.
1. "That bitch had such a nuclear envelope that I wouldn't even touch her with a 10 foot pole."
2. "I'm not putting my dick anywhere near that nuclear envelope!"
by FBAC if you DEFC April 13, 2010
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