1) An expression assuring someone that you are watching out for them. Comes from making sure you are safe by watching what's behind you when you're busy looking ahead.

2) Can be converted to a threat: "Watch your back," from the possibility someone might injure or kill them from behind when they aren't lookin.
Iono about dis...

Don't trip, Son. I GOT YOUR BACK.
by Joshiro007 February 19, 2003
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when your friend, pal, colleague, cheerleader, or someone of a close affinity is by your side (either figuratively or literally) to makes sure that you make it through the troublesome, difficult, or tedious time or predicament you are currently in.
craig: oh, arianna, are you ok?
arianna: i just can't get this cheer down. I don't think I'll be able to do the perfect cheer.

craig: You can do it! I know you can! I got your back.
by arianna-opc August 15, 2011
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I'm his wife, so I've got his back.
by Zuter April 25, 2007
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An iconic line in the well-known intro song "Intro: Neo got my back" by South Korea's kpop group NCT U; the 1st and main unit of NCT owned by SM ENTERTAINMENT.
Whenever I told my friend that I had her back, she would always reply loudly with "Neo got my back, culture thing, tech tech on my mind" so I searched it up. Turns out it was a song all along and I have discovered that now any phrase can be turned into a kpop reference.
by NCT's Airpods February 7, 2019
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You are going to watch out and be a second set of eyes for someone. You will look out for their best interests and let them know if they have missed something. You will stick up for them.
Dbyrn: Hey, Frappe, I saw some kids messing around near your car, looked like they might be think about breaking in.
Frappe: Dude, seriously?
Dbryn: Yeah, I took some pix of them with my cell phone and they saw me and split really quick.
Frappe: Thanks Dude!
Dbryn: Don't worry, you know I've got your back.
by dhax August 8, 2011
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Verb. Meaning to have a part in a fight in the direction that the primary fighter is facing, or also to mean a person will accompany another in a stupid or foolish act.
"If Jerry swings on me, will you be there?" "Yeah, I got your back" or "I'm going to go drink a fifth tonight, wanna go?" "Sure man I got your back"
by That one army guy October 1, 2013
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Just a corny thing to say if your wearing a hooded sweatshirt, and the hood is down; normally meant to say your friends and/or neighborhood is protecting you.
"Hey guys, the hoods got my back."
by Chris Vee June 13, 2006
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