by Martin Duxon August 8, 2003
When a girl farts and queefs simultaneously, placing one hand "over" her vagina, and the other hand "under" her legs, on her ass, both in a cup-like position. When said girl farts and queefs, she moves her cupped hands from a closed to open position, thus creating a loud "Over-Under Thunder." This act is common when girls have pajama parties.
Cindy: Uh-oh! I have to fart and queef at the same time! What should I do?
Stacey: You should cut an Over-Under Thunder!
Stacey: You should cut an Over-Under Thunder!
by JasonFatKid November 2, 2012
1. That which is located below the waist that makes the owner proud.
2. Passing gas in a way that causes ripples in both the thighs and the air around it.
2. Passing gas in a way that causes ripples in both the thighs and the air around it.
1. Tonight, if things go right, Sara will be taking a gander at my down-under thunder
2. Man, I have a bad case of the down-under thunders
2. Man, I have a bad case of the down-under thunders
by Jacob Krieg May 22, 2008
by IDontLikeMeEither April 13, 2017