K Sauce 

Ketchup.

derived from the first letter of the work ketchup: "K" and the fact that ketchup is a sauce. hence K Sauce

"Dude, this burger is way lame. Pass the K Sauce."

K Sauce by whatsauce? September 5, 2009

Sauce-K 

A dumbass with nothing but luck and determination. He does tend to do things to the best of his abilities, but he always ends up failing in some way or another. He doesn’t get the simple fact that he isn’t going to live up to anything. He’s nothing but a pest, a nuisance to everyone and everything around him. But apart from that, a pretty chill guy. Also he eats ass like no other.

Sauce-K is so cool man like so cool he’s so cool I can’t believe how cool he can be so cool

Sauce-K by No.1 hyperactive dumbass August 22, 2020

ksauce 

A way of saying "Ok".

Person 1: Man, I don't like you.

Person 2: ksauce.

ksauce by Justin March 10, 2005