חפשו מילה כלשהי, כמו donkey punch:
 
1.
Rad and fantastic combined making a force to be rekoned with. If you are radtastic you are the best.
That movie was so radtastic i bet it will get great reviews
מאת sctso 28 באפריל, 2003
 
2.
(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.
מאת Bradley Darren Davidson 14 בנובמבר, 2006
 
3.
to be rad, and fantastic (not in a gay way)
man that game the other day was radtastic
מאת 1337solidsnake117 3 במאי, 2007
 
4.
amazing; of top-notch quality.
Dude, last night's shenanigans were radtastic, were they not?
מאת AlanJohn 21 בינואר, 2008
 
5.
The most rad'st thing that can come up to mind
Dang T.A.K is like the most Radtastic skate crew out there man!
מאת Devin Starr 15 במאי, 2009
 
6.
something so fricken cool you couldm't even use the normal word "rad" to describe it!!
that was SO radtastic!

you are very radtastic
מאת asdfcodyjkl; 19 ביולי, 2008
 
7.
To be Incredibly amazing, both RADical and fanTASTIC at the same time.
Bob: Hey, Guess what cindell, it's friday.

Cindell: AGAIN??? ARE YOU SERIOUS??

Bob: yep.

Cindell: OH MAN, THAT's SO RADTASTIC, I HARDLY KNOW WHAT TO DO WITH MYSELF!!
מאת Cindell Corbeil 19 בנובמבר, 2007