Mm, yes 

Used when you want to imitate someone in a derogatory way.

Luke: So last night, I was reading my AP textbook for class, and did all of my homework on time.
Mike: "Mm, yes, let me just read my AP textbook"

Mm, yes by tills November 25, 2013

mm yes very cool 

what u say when ur ]slime] says something random

“did u know hear about that ligma outbreak?”
“mm yes very cool.” *followed by laughter usually by both parties if they both mutually understand that what was said was stupid and random*

mm yes very cool by mm yes very cool May 27, 2019