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8.
Male masturbation with the aid of a toilet paper roll, or in the case of those who are exceptionally gifted, a paper towel roll.
I was ground hogging with the roll yesterday, and got a paper cut.
by Bing77 October 09, 2011
 
9.
During sexual intercourse, you witness something so incredibly disgusting that you lose your erection and your penis recedes in towards your body. (Much like how when a groundhog notices his shadow and runs back into his hole.
I was about to start fucking this girl I met at a bar, when I pulled down her pants and noticed she had open sores covering her pussy. It was so disgusting my penis went groundhogging.
by Branden Raczkowski December 20, 2006
 
10.
During sexual intercourse, you witness something so incredibly disgusting that you lose your erection and your penis recedes in towards your body. (Much like how when a groundhog notices his shadow and runs back into his hole.
I was just about to bang this hot chick last night when she farted. It was so gross, i lost my erection and my dick went groundhogging.
by thebeanerz January 03, 2007
 
11.
you take a dump into someone else's asshole
she had it in for a ground hogging
by nathan zimmerer October 10, 2005