This is a phrase you use when something absurd happens and you are about to beat the shit outta whoever did it to you, whether it be a game or not.
Ex 1)
Mark: *Throws the ball between your legs while doing a back flip over you, catching the ball mid-air, mid back flip into a exploding dunk.*
Bobby: Did you really just do that folks?, Nah it's cool...
Ex 2)
Trey: *Perfects the final boss on a fighting game*
Final Boss: Nah, it's cool...
Mark: *Throws the ball between your legs while doing a back flip over you, catching the ball mid-air, mid back flip into a exploding dunk.*
Bobby: Did you really just do that folks?, Nah it's cool...
Ex 2)
Trey: *Perfects the final boss on a fighting game*
Final Boss: Nah, it's cool...
by Seto Kaiba (Fuck Yugi) January 28, 2020
Get the Nah, it's coolmug. by totallynotnic June 29, 2018
Get the how to be as cool as dylanmug. by ApricotFields May 15, 2022
Get the Double Date (the cool kind)mug. When you discreetly slip a piece of sandpaper in ur palm with icy hot to make it stick, before administering a hand job
The cool sandy handshake the actresses younger sister gave the movie producer left him in the hospital with an embarrassing case of road rash.
by Occupational breather August 3, 2018
Get the Cool sandy handshakemug. Paddy is cool
by Paddy stuart peter coleman April 22, 2021
Get the Coolmug. 
