The rad scale short for radicle scale is a scale made up by Richelle Dafoe, to conferm how rad or cool people are. the rad scale is a rating out of 10. 10 being the radest and 0 being the queerest Michael Brock
"man, look it's ian brock. i hear that kid's a 9.9/10 on the rad scale."
by Ian Brock January 12, 2004