treenis 

Huge penis that can be mistaken for a tree, the kind of thing you see in modern porn. A penis so big you wonder how any mortal woman can take it.

Holy shit! That thing is huge! If your girl can take a treenis like that, she's ruined forever.

treenis by alfalfa31 July 27, 2009

treenis 

A tree that is shaped like a penis. Usually on a slight slope or hill with a curve at the base, giving the image of a treerection.

See also: cuntree

"Now, I'm just gonna stick this treenis into this cuntree and make a lean-to shelter!"

treenis by Drewboy64 August 7, 2007

Treenis 

Large penis

Dave pulled out his member. Man that thing was like a tree. He had a treenis

Treenis by Gber April 22, 2018

treenis 

Ok this is one my friends made up. A treenis is a drawing of a penis with leaves at the top so fags and parents won't think that it's a penis, instead they think it's a tree!

Guy one: (drawing a penis on my friends shirt) LOOK A PENIS!

My friend: MY MOM'LL KILL ME IF SHE SEES THAT! i won't be able to wear that shirt!

Guy 1: No problem! (draws leaves at the top to make it look like a coconut tree) IT'S A TREENIS!

treenis by Desiree A. December 16, 2005

treenis 

The name of a really cool gal named Trina.

Treenis, it ryhmes with penis.
14 inches of pure bliss.

He went with Treenis to the sports grill.

treenis by goose13 August 21, 2006

Treenis 

The penis found at the trunk of a redwood tree.

Billy: “Yo bro I saw a massive treenis on that redwood over there, you should totally ride that thing”

Treenis by Handle Mycock February 1, 2022

Recursive Treenis

A penis that splits in two recursively, either infinitely or to some finite depth.

I can fuck four women simultaneously with my 2-recursion depth recursive treenis!

Recursive Treenis by EternalSoldier February 3, 2026