knump

The area on the back of the leg behind the knee.

When i bent down I felt a sharp pain in my knump.

by pedders1963 February 4, 2010

Knumping

Having sex with a person's knees.

Person One: So what did you and your date do last night? Knumping?
Person Two- We totally knumped.

by llamak48 October 4, 2011

Knump

The instinctual backward jump that happens when you realize you have dropped a large knife In the kitchen.

The girl quickly knumped when she accidentally dropped the chopping knife above her feet.

by HotTamale33 August 10, 2016