slave tree 

A tree in the middle of a crop field, in which slaves used for shade in the olden days.

Hey dad, whys that tree all alone out in that field?

Well son back in the day that's where the slaves sat to get shade. So it's called a slave tree.

slave tree by Ash Bee June 29, 2018

save a tree 

equals eating a beaver,

this results out of the t-shirt slogan:
Save a Tree
Eat a Beaver

It basically means licking a pussy

She has a nice beaver i would like to eat it.

Hey Cutie, wanna let me save a tree for ya?

How about us saving a tree tonight?

save a tree by APhilThoN June 2, 2009

SAVE TREES 

THE AMAZING SAVE TREES MOVEMENT

all genders are equal
SAVE TREES

SAVE TREES by WindySpeaker June 1, 2019