This expression is usually screamed, but does not necessarily have to be yelled at the specified target. Used when someone is engaging you in a story or conversation that you don't feel like hearing. When used correctly the speaker will feel embarassed, and immediately stop boring you with their story. Can be translated to "I don't care," or "Shut the hell up."
T: Yo I was in class today and my professor was telling us all about psychology.
Brett: O yea, what was he saying specifically?
T: Well he was telling us how the brain
Irv: DATS COOL!!!!
(Silence is restored)
by Blazed Irv December 3, 2007
Get the dats cool mug.
A faggot who had no friends and should kill themselves
Fernanda is one of those "dat cool guys" if you know what I'm saying.
by C.E.O of your Mom April 11, 2018
Get the dat cool guy mug.
A little phrase used when you dont really give a shit about what the person is saying, but for some retarded reason, you respond anyway.
Bro! i just talked to someone i liked and they said they thought i was cute!

Dats super cool!
by Mr. Poo Corn, Shirn November 12, 2016
Get the Dats Super Cool! mug.