backseat driver

1. a passenger in the back seat of the car who criticizes the driver

2. anyone who offers unwanted advice

Stop being such a backseat driver. You will only make things worse.

by Light Joker December 15, 2005

baccy bong

when you do tobacco in a bong instead of weed

ima be slammin that baccy bong so hard I'm gonna get a headspin

by maninjacock January 7, 2012

back walled

When something inserted into a girl's vagina (usually a penis) hits the "back wall" and can't be pushed in any further.

Johnny said he had a big dick but his chick said she didn't feel back walled.

by N8 is Gr8 August 1, 2012

TP Backup

Something that is used to wipe the ass when conventional toilet paper is not available. Most often, the need for TP Backup is when the person pooping misjudges the amout of toilet available at the time. Hand towels, magazine pages and discarded tissue are often useful TP Backup.

When the toilet paper ran out, I realized that there was still more poop to clean off my ass. I looked around the bathroom and saw a Cabbage Patch Doll, I had to use it as TP Backup , or else i'd be in big trouble later.

by SweetBill December 8, 2005

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!"

by Electrick April 17, 2006

back atcha'

In simplest terms back atcha' means, "Same to you." It's a positive connotation.

"Baby, you look so stylin'!" to which your baby says, "back atcha'.'"

by CaMaLibra February 15, 2014

bacan

spanish for "cool" or "sweet" or "awsome"

-voy a ir al club por la noche ( im going to the club tonight)

-que bacan! (awsome!)

by dereeldill August 19, 2006