by TheHaterOfFat May 13, 2004

A sexual move when you insert both hand in the pussy then make both hands into a fist when your in the pussy and then slam down as hard as you can.
by Gamer69961 April 24, 2019

by ArmHairMan March 23, 2010

by 79_elko February 14, 2010

Similar to "prairie-dogging": When a turd leaves it's nest, sees it's shadow, and runs back in. This is a precursor to the "turtle-head", and should not be taken lightly. Short yet expedited steps in the direction of the nearest toilet facility are recommended immediately. A post-evac check of the surrounding areas will signal a possible 6 week extension of gastrointestinal discomfort.
Jay- "dude its like the stage before ... like its not prairie dogging yet...its like right before that."
Greg- "Oh! So its ground-hogging ! It popped out saw its shadow and ran back up in there."
Greg- "Oh! So its ground-hogging ! It popped out saw its shadow and ran back up in there."
by Klamakazi February 18, 2010

To reset a conversation, object or situation to it's original or prior form. Especially if the given situation is extremely undesirable.
I don't even know what we're talking about at the moment, let's ground zero this conversation right now
by lunchZA October 29, 2018

by LolaBonita22 March 11, 2017
