Back door

When someone you trust sneakily takes your girl, job, friends.

He was my friend and then totally back doored me with my girl

by Yadf January 6, 2017

Back Flip

A full 360 backwards rotation somersault in the air.

Michael: Have you see that guy do that really sick back flip?

Rob: Yeah, dude. That was really cool!

by GoFlushYourToilet September 1, 2017

back wood

The act of laying prone on your stomach with a wooden dildo strapped around your waist, situated with the base on your back, facing up. Another person then rides the aforementioned dildo as though the prone individual were a trotting horse.

Cathy prefers doing back wood while in full English riding dress.

by Swiping Left October 6, 2019

Back nine

Being polite in a crowd

Fucked up the ass back nine

by Stupidwords4people June 4, 2018

chewed back

the ultimate form of felatio (blo job) . done by a complete master at this craft...

i went to my girl house last night, and got chewed back.

by Dirtyent2007 November 12, 2010

back skipper

The dude who slouches forward with his big ass shoulders and chest because his back muscles can't hold him upright.

Look at that back skipper hitting chest again.

by week3hoh June 20, 2018

Back Butt

When a gym rat flexes his back muscles giving off the appearance of a butt crack

Colin is such a frat star flexing his back butt.

by Collin has backbutt August 5, 2016