Top definition
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.
by alfalfa31 July 27, 2009
Get the mug
Get a treenis mug for your father Vivek.
2
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!"
by Drewboy64 August 06, 2007
Get the mug
Get a treenis mug for your father Bob.
3
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!

by Desiree A. December 15, 2005
Get the mug
Get a treenis mug for your friend Nathalie.
4
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.

by goose13 August 21, 2006
Get the mug
Get a treenis mug for your brother GΓΌnter.