An expression said by Jacksfilms (Jack Douglass), a Youtuber, used as a calm response in order to hide your feelings or avoidance towards a comment or opinion that might be emotional, hurtful, embarrassing, etc.
"Mom said dad was going to be back from the store"
"How long ago was that?"
"12 years but he'll be back"
"Cool cool"
A term used to show a group that you're listening to what their saying but you truly haven't heard what they are saying.
"Hey let's go outside and take a picture with that famous statue as a group because we won't be back on this trip or maybe never again, for that matter"
(a) In L33T speak, "cool cool" is used as acknowledgement for absolute understanding, no further discussion on the matter is necessary, as in "So we're not going to play beer pong? Cool cool. Let's do keg stands."
(b) Kk also means, "cool cool", also means "ok, cool'
(c) "cool cool" also means "I get it, and that's cool."
Ulzzang true definition is "best & "face" = best face in korean. They are basically people with above average looks, sometimes with the use of photoshop and haduri who post their pics online, some becoming internet celebrities.
"Hey, see that chick over there? She's pretty enough to be an ulzzang. :D"