Watch out for danger behind your back (like you might get jumped or something).

Watch your back.

Keep an extra set of eyes on the back of your head.
Dude, be careful man. Watch your six.
by Brent Ninja October 11, 2012
Get the Watch your six mug.
The thing stupid people say to someone that curses. Referenced in one of jacks film's videos
F.ck that.
Hey! Watch your langwing!
by Lost_in_translation September 9, 2016
Get the Watch your langwing mug.
To watch your behind, used in aviation as a warning by your wingmen.
Watch your 6 nighthawk, you have a bogie on your tail
by Delta Sigma October 3, 2004
Get the watch your 6 mug.
Watch what you're saying bro

T. slang that means relax and shut up

synonym for "nize it"
You better watch your lip dawg or I will tump you in da headtop!
by Watch your lip February 6, 2018
Get the watch your lip mug.
Watch your back.
Keep an eye on what could be behind you.
Turn around and look.
by K!ngFox July 10, 2021
Get the Watch your six mug.
This phrase simply means that you should watch what you are saying because the person saying this to you will most likely knock your teeth out of your oral cavity because they are not liking what you are saying.
Man, watch your teeth. I don't approve of that word that begins with an "N."
by Linden Mazur November 8, 2007
Get the watch your teeth mug.
A phrase that is said when one has purchased a bag of peanuts before going down a ski lift, and is waiting for the safety bar to lower, that warns them to protect their bag of peanuts.
When John was lowering the ski lift safety bar, he jokingly nudged Peter and said, "Watch your peanuts!"
by B. Ricky November 27, 2020
Get the Watch your peanuts! mug.