A portmanteau of Radical and Badass. Used when something is so monumentally awesome that you have to think of a new word to describe it.
Whoa! Her vagoo is fucking sweet! It's...it's...it's RADASS!
by Someone named Archer April 19, 2008
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-adjective;

1. having qualities that gives great motivation to live above the ordinary

2. excellence of its own kind

3. opens up the mind to see, hear, think about

-noun

the ideal of beauty in the membrane
"a radass like you kid, is like an olsen twin, you build a giant fan base of jealous followers drinking soy milk in a cape"

a radass doesn't accept an ordinary life; doesn't follow trends; doesn't take no for an answer

"ma'am you were going 80 mph in a 55... i need to see your license and registration" - officer
"oh my.. yes.. i'm sorry... here it is *smiles cutely*"radass
"i'm just going to give you a verbal warning.. get home before your daddy kicks your butt" officer
by diamond pistol lb November 18, 2008
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Some fucking nickname of some fat, ugly, fat, fatty, fat....fat fat, who steals all your fucking food, even the shitty cheese-it’s that are half broken and not salted
Ya know that guy, yeah him, he’s a radass
by JESUS N’ SHIT June 23, 2018
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better than rad. more powerful than bad. and truly assylicious.
dood. that trick was radassical!
by jack bender July 14, 2006
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French noun referring to a woman (not necessarily French) who inspires you disgust or scorn.
Can also be used as a mark of affection for friends you enjoy teasing.

Very often, you will realise that a 'radasse' is also a 'grognasse'. But not always.
"Grosse radasse, tu pourrais répondre à mes textos!!"

"Quoi, tu as invité cette vieille radasse de Gabrielle ? Cool ! :)" - use the context to know when radasse is used in a friendly way !
by Dr.Reboot June 24, 2009
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Like 'badass', only better!
That Wendy's run last night was radass.
by Hed December 30, 2004
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Everything that doesn't suck. Combination of the words Rad & BadAss I thought of. Expressing extreme awesomeness. People seemed to dig it. So I sent it here.
OMG! That band we just saw was RadAss! Dude , that wave was radass. Surf's Up! Man ur RadAss! Be my significant other. Haha.
by Mtrqne January 8, 2018
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