The pocket of fat above the knee of an obese person...can be used for sexytime, storing personal items, or as a hand/foot-hold to reach the elbowgina (or other hole).
She wasn't fat enough for me to put it in the elbowgina, but the kneegina was a perfect fit!
by jimmy patrick February 14, 2008
The inside of your knee, opposite the kneenis.
Stop tickling my kneegina!
by verk August 21, 2006