When you say something wrong, stupid, or threatening, and get threatened.
Jeff: yo girl is ugly asf
Ethan: better back the fuck up before you get smacked the fuck up g
by ezra24 April 3, 2023
Get the back the fuck up before you get smacked the fuck up mug.
An extra person that you keep in your back pocket on a sense
"I won't be used as a back up card if you break up"
by Awesome cat guy March 29, 2016
Get the back up card mug.
A phrase used to signify that the subject has little to no support on their opinion
Jimmy: I think that we should all get more homework
John: All your mates are backing you up, trust me!
by Pavement Misuse September 10, 2018
Get the All your mates are backing you up mug.
A person that is a "friend" but is treated very poorly, and is only used as a second option incase their #1 friend isnt around.

back-up friends may be ignored, and not invited to things.
a back-up person are in a trio relationship of any kind

they may be that friend that walks behind the group when they are talking about something they didnt go to, and the friend that gets left on read in the groupchat and gets called annoying.
"I feel like a back-up friend when im around her." -1
"im sorry for you" -2
by Da.weirdo July 5, 2022
Get the A back-up friend mug.
The oid mill will use this when they want there crew to ‘back it up
by Oldmilloriginal November 28, 2018
Get the Old mill, back it up mug.
The most advance and effective form of ball-tapping.

A move executed from behind, it involves grabbing the balls from between someone's legs, and pulling them "Down, back and then up." The victim should fall forward due to the nature of the attack.

Being a sneak attack, It is extremely effective and easier to pull off than the common ball-tap.

Variations include just a simple "Back and up" move, exactly the same but without the first Down pull. The victim should be lifted into the air before falling forward; this is very humiliating.
Lyman: So I was standing there minding my own business, when that jerk Matt came behind and Down-Back-Up'd me.
Ryan: Ouch man, slap dat ho

Maybe one day we can all go down-back-upping in the woods!
by GoatNoises September 20, 2009
Get the Down-Back-Up mug.