radicool is a philosopy that combines the two words RAD and COOL used to discribe a bad ass
heel flip indys are not radicool
that girl looks like a pig smoking a cigar while eating a pork pie its so radicool
An even more radical version of radical dude. It's like amazeballs. Only to be used in XTREME situations! It's radical bro.
"Woah dude, that bro just punched a bird in the face when he jumped off the building!"
"Woah dude, that's radicool."