poop-knuckle 

The second knuckle in (heading towards the hand). Originating from the knuckle at which you stop at when inserting a digit into another's asshole.
Used to warm up/stretch out an asshole before anal sex.

I was playing ping-pong and the ball hit off my poop-knuckle.

poop-knuckle by DMazzIV August 24, 2006

Poop Knuckle 

The result of an improper angle of approach when wiping your ass from a particularly messy poop-session. Poop gets on your knuckle. Usually occurs when you lift a cheek to the side and attempt a wipe.

Steve liked to lean to the left when he wiped his ass. This often resulted in a nasty case of poop knuckle.

Poop Knuckle by Bspot January 14, 2008

Poop Knuckle 

A place on a poop where it is thicker than elsewhere on the poop.

Sorry I took so long in the can; I got stuck on a poop knuckle and it took a while to force it out.

Poop Knuckle by skullfragment October 15, 2008

poop knuckle 

The point to which poop comes up the shaft of the penis after having anal sex with someone who didnt "clear themselves" before hand.

Damnit carl, you forgot again?! This poop knuckle has to be at least four inches...this time your cleaning it.

poop knuckle by BGSC March 4, 2009

poop knuckle 

When wiping the ass after an exceptionally productive poop, a knuckle is accidentally raked across the large, volcanic cone-shaped pile.

I must remember to give myself a courtesy flush to keep from getting these damned poop knuckles.

poop knuckle by padabo October 2, 2011

poop knuckle 

sworn mortal enemy of the poop doodles this terribly violent group of pks will terrorize your home and dont get us started with poop knuckle trees the sub seqquent group also this group not aloud to speak agout fridges

that poop knuckle really with that life

poop knuckle by poopknuckletreeee June 17, 2022

poopsnuckle 

Where a person shoves one's knuckle up a butt after pooping and shoves into another's ear violently

should we poopsnuckle this nerd?

poopsnuckle by TheSushiMaster1233 August 7, 2019