1 definition by grandma nutt

Top Definition
When a male ejaculates with enough force and velocity to hit the wall behind the bed.
Last night while I was having unprotected sex with my girlfriend, I pulled out, aimed my cannon directly at her face, and accidentally busted a wallnut. Now there's a stain above my parents' bed!
by grandma nutt May 05, 2010

The Urban Dictionary Mug

One side has the word, one side has the definition. Microwave and dishwasher safe. Lotsa space for your liquids.

Buy the mug