1. to be the coolest of cool; this is
the next level after 'cool as a cucumber'. People who are double cool with ice typically don't
give a damn what anyone else thinks, can have fun anywhere/anytime, and
give off such an insanely cool vibe that everyone else wants to be like them.
2. a way in which to order a drink if you want it in a very cold state.
dude: Wow, did you see that girl dance?
dude #2: Yeah man. She is definitely double cool with ice.
OR
girl: can you
mix me a coke and
rum, and make it double cool with ice?
bartender: for sure.