Rad and fantastic combined making a force to be rekoned with. If you are radtastic you are the best.
by sctso April 28, 2003
Get the radtasticmug. by AlanJohn January 21, 2008
Get the radtasticmug. by 1337solidsnake117 May 16, 2007
Get the radtasticmug. by Andy-Fuckin-V!!!! May 11, 2012
Get the radtasticmug. (adj) Something so great, or tremendous, and unbelievable that it supersedes all other synonyms of both good and extraordinary.
Although she was nothing more than an iconoclastic misanthrope, she had to admit that her adversary's discovery was radtastic.
by Bradley Darren Davidson November 14, 2006
Get the Radtasticmug. by Devin Starr May 16, 2009
Get the Radtasticmug. Somebody who is all out awesome and portrays a certain image that is accepted through certain groups, cults; etc.
"I love you! You're so radtastical!."
by Samantha Sadler April 14, 2006
Get the Radtasticalmug.