When a person writes two or more consecutive comments on facebook, using the subsequent comments to add more detailed information, usually to prevent themselves from appearing ignorant or idiotic to others who may question the legitimacy of the original comment.
Joe's Status: Feel so drowsy today.

Mark's First Comment: Don't you mean, DRAW-SAY :p LOL!

Mark's Second Comment: You had to be there to get that.

Mark's Third Comment: At the party, I mean.

Mark's Fourth Comment: Joe got totally pissed whilst we were playing charades.

Joe's First Comment: Way to go with the back-up comments...douche
by bk-kaboom February 23, 2010
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Back up ragers. An Awesome group of people. Who supported the RATM for xmas number 2009. This group of people stayed togther long after it was all over and carried on raging. Many friendships where formed and they became like family

Back up ragers. A large group of people who enjoying raging.
The back up ragers will be raging at the free rage gig
by Archykins April 11, 2010
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"Backing that thang up" is a term used to define when one simply backs up their massive load of tooshie. (Example: "I like the way you dance girl, back that thang up!")
Twerking ass shaking backing it up shuffling reverse shake dat backing that thang up
by twerkteamcaptain September 21, 2013
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So Christie is pregnant, anyways did you see the football game on Monday?

Wait, wait, wait back up the truck...Christie's what?
by bandrewa October 14, 2007
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When you have plans to pull a girl but invite a good mate who you can chat to if the plan fails.
Man 1: Hey do you wanna go out tonight? I just got invited out by George, he says Samantha and a few of her friends will be there.
Man 2: Doesn't he fancy Samantha?
Man 1: I think so, why?
Man 2: You're so his banter back-up!
by DJ Dino Dingo August 31, 2009
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Boy who you date if your crush wont go out with in a matter of time and you pick a guy to date as a back up for ur crush
Jonny u are my back up boy
by Jdisjdided December 27, 2016
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