backsider 

Someone who takes selfies with the backside of their camera, specifically iPhone users.

Did you see Cam take a picture with the back of her phone?
Yeah, she's a backsider!

backsider by kaelin92 November 15, 2014

Backside beans 

Small nuggets of poop that are about the size of a small grape, and that usually come out one at a time. Named so due to their round shape and small size.

"Ayo some dumb fuck left backside beans in the urinal! What the actual f-"

"Honey! Someone left backside beans on our porch... AGAIN..."

Backside beans by Suckmytoes_77 August 16, 2021

Butter my backside and call me biscuit 

Something white people say when they are suprised by something

Joe: Bro I got accepted into my dream college
John: well butter my backside and call me biscuit

Butter my backside and call me biscuit by Donald_nut August 6, 2018

national backorder

Some B S story or excuse about ordering a part for a car and being told it can't be delivered until hell freezes over ( your shit up a creek)

Your car part is on national backorder , cause the lazy fucks won't make it till after lunch.

national backorder by Dalray January 4, 2019

backside attack 

Proper: A chemistry term used to describe the transfer of electrons and subsequent bonding of a neucleophile to the back face of a molecule. The back side described is the chiral center, with subsistents in a tetrahedral formation facing away from the nucleophile. Once the backside attack is complete, the stereochemistry of the molecule is inverted.

chem eng slang: A difficult academic situation. It is often used to describe the difficulty of an assignment or a test. Synonymous with ass rape.

"Oh shit, that exam was a total backside attack!"

backside attack by Electrick April 17, 2006

Backster 

The opposite of a hipster, a backster is a person who doesn't like things until after they're cool. Also known as slowpoke.

"He's such a backster that he just started watching Arrested Development."

"Hey guys, check out this awesome new band, the Neon Trees!"

Backster by PolkaDotRobot June 8, 2013

backorder bitch 

A super hot chic that is desired by so many guys she would never be able to keep up with the demand. Guys have to wait in line to get a chance.

That girl is crazy hot, but I have no chance. She's a backorder bitch.

backorder bitch by T-HUD January 1, 2014