"apple sauce striked on the stupid people of earth because they were eating apples"
A term of high respect and consolation used among (usually young) men. More personal and intense than simply bro. Likely arose as a logical reaction to young women referring to each other as orange sauce.
A: My girlfriend just dumped me.
B: Hang in there, apple sauce. It'll get better.
Or "backsauce"
A lazy version of the word "backsass", and a variation of the word "back talk".
Literally means, talking back or responding to someone (mainly an authoritative figure) in an opposing and sometimes smart aleck-y manner.
You're wrong in what you said in this situation.
Boy, don't you back-sauce me!
The sauce that comes from out of one's back. Typically from a pimple, cyst or magical portal, back sauce is potent, thick, creamy and extremely rare in small communities. It is more common in metropolitan areas. People with back sauce build-up are, on average, stupid and have hair on their heads. They are hard to spot. Beware of the "back saucers". They are aggressive and very agitated due to the back sauce build-up. Avoid eye contact and any form of communication with a back saucer.
Ariana Grande: "Man, I have a serious build-up of back sauce, Tony. I think I'm gonna have to go to the spa and get a massage so they can squeeze some of that creamy juice out."
Tony the Tiger: "Bitch, I have no idea what you're talking about. That shit sounds disgusting."
What your "friend" says when he is just blazed
*robot unicorn attack playing in background* "Eagle Man Baby Sauce" {friend} What? {you}