A very and an increasingly popular sauce or sandwich spread especially among the Millennial generation and today’s youth, chiefly due to the fact that regular mustard is now almost exclusively eaten mainly by adults in their forties or older, see: Yellow Mustard
My father and mother primarily eat yellow or spicy brown mustard; most or practically all millennials and today’s youth will only eat honey mustard sauce if they even eat any kind of mustard at all
To Apple sauce your self you must be a greasy apple fan who goes to all of the iPhone reveals and apple sauce's him self when apple reveal that there new phone can take a picture of you having a shit
Oh man that new iPhone made me Apple sauce my self
1. A food consisting of mashed apples and other seasonings
2. That stuff you use in your Spaghetti
1: Do you like cinnamon with your apple sauce?
2: I like apple sauce in my spaghetti.
"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!