Back Bar Challenge 

To have all the shots on the back of the bar in one day.
Contestants are to consume the same shots at the same time, with water and food allowed throughout the day.

I completed the back bar challenge by have 36 different shots from the Plug Bar in one day.

Back Bar Challenge by PlugBarHero March 16, 2009

back to da bar 

used to end a boring convosation or bridge an awkward gap in the convo.usually at a party or bar.packs even more punch if you actually leave to go to the bar.

i was talking to this hot chick but she kept talking about her ex so i was like "o well back to da bar".

back to da bar by the bro scotty July 31, 2006

Backseat Klondike Bar 

When you poop in the back of an Uber, often as a sign of disapproval for your ride or driver, but in some rare cases it can be used to show affection.

Ryan: My Uber sucked.
Cody: Oh, did you give a bad rating?
Ryan: Nah, I just left a Backseat Klondike Bar.

Backseat Klondike Bar by Lil' Pukey February 26, 2018

barback

Someone who works behind the bar doing everything but serving drinks. They do things like restocking the fridge, replacing spirit, wine, and juice bottles, cleaning, replacing ice, et cetera.

Lorie is a barback so she spends most of her time restocking the bar area.

barback by RKM September 30, 2006

Barback

In colloquial terms... the bartender's bitch.

They do most of the work for about half of the tips that bartenders make. However, it's a great stepping stone for newbies in the service industry. They just have to make their expectations clear that they want to eventually move up so management won't take advantage of their reliability and hard work.

Every well-paying bartender was once a barback

Barback by Soul_Driver June 5, 2022

Barback

To ride on the bar wearing ass-less chops, pretending to "ride 'em cowboy"

Liquid encouragement gave the woman the balls to barback at a bar in Nashville, TN.

Barback by JRMoney August 17, 2017