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."
"Woah dude, that's radicool."
by PAWPLE_hat November 13, 2017
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