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1.
The term "cobwebbing" is used to describe a woman who's vaginal cavern has not been explored for a long period of time. So long that the inactivty and lack of any human presence has left the vaginal cavern overwhelmed with the formation of cobwebs.
I haven't had sex in so long, I'm cobwebbing.
by Jillayyyyyy June 30, 2013
 
2.
When a women becomes so wet during sexual activity that when she closes he legs then reopens them vag-juice strings from thigh to thigh creating a cobweb like appearance
Liz got so turned on by him that when she opened her legs she was cobwebbing
by Leftfoot12 March 27, 2009
 
3.
The Extremely offencive way of dumping your girlfriend involving shagging her bearback from behind then pulling out and jaffing on your own hand while symoltaniously fleming onto her back to give her the impression that you jizzed on her back and when she turns around to look at you slapping her around the face with a hand full of your own jizz before running out of the joint before she can bite your cock clean off and spit it in your face.
I just cobwebbed my girlfriend... I don't think I like her anymore
by Richard November 25, 2004