After preforming anal sex, when the penis is pulled out of her anus, and her asshole is dilated enough to drop a wallnut in it, henceforth the wallnut-hole.
by Jacen Ynot September 14, 2017

by frankie detori December 18, 2007

When you apply two bricks to extreme pressure on the male genital region, causing the excretion of fluids which are instatly placed on the face of your unexpected victim.
by Encrtia June 8, 2009

The act of masturbating and smacking your dick against the wall as you nut letting it go all over the wall
Person 1: whats with your walls, did your painter not finish yet
Person 2: Oh no I was just wallnutting
Person 1: Whats wrong with you
Person 2: Oh no I was just wallnutting
Person 1: Whats wrong with you
by Thewallnut March 29, 2019

by queephlosion March 15, 2019

by TheAlanFella November 5, 2008

An individual (typically the Conversative kind) that is extremely supportive of President Trump and his wall.
Conservative: “Those snowflakes don’t know what hit em! Mexico will pay for the wall!”
Liberal: “Wow... now THAT’S a Wallnut.”
Liberal: “Wow... now THAT’S a Wallnut.”
by ButteryBeard January 15, 2019
