Backside 

Backside is the word used to describe when a guy has permission to enter in the alternative option. In general, all guys like to go up the backside but it's a true honor and gift.

Me: I've been dating Joe for six months, and I finally gave him a season pass to go up the backside.
Friend: Shit really? You must love this guy. Oww

Backside by Funny Moms August 8, 2016

backside flip 

skateboard maneuver in which the rider performs a kickflip and a backside 180 rotation

oh man, theotis has backside flips on lock.

backside flip by himey ho March 4, 2014

Backside of the Poon 

When you look at a ho from the back and see a little bit of pussy from the ass. And I’m not talking about the gardening tool.

When I told that bitch to make me some Chef Boyardee I couldn’t help but notice the backside of the poon.

Backside of the Poon by Yung poon November 25, 2017

backslide

verb: to re-adopt sinful ways after having spent some time as a pious religious person.

For about a year, we thought we lost him, but then one day Skeevo backslides right back into our lives!

backslide by F. Rodderick Hsu May 7, 2005

Backside attack 

Fucking someone in their asshole.

"Yo, last night was mad crazy when you gave me the backside attack."

Backside attack by CHEMTROLL November 15, 2011

backslider

To revert to sin or wrongdoing, especially in religious practice

Someone who gets safed only to revert to their old sinful ways is referred to as a backslider

backslider by Greg54B July 16, 2007

backside attack 

Real-A term used in chemistry to describe a chemical reaction mechanism.

Slang-When a girl who doesn't know you are there bends over and you (attack/ hump the fuck out of) her backside.

Girly was bending over so i busted her up with a backside attack

backside attack by The Doug April 11, 2003