K rad 

Someone who has passed the normal level of "Rad"

That was fuckin K rad

K rad by melvin April 28, 2003

K rad 

OK, radical. Radical was a common slang word for really great mostly used in the midwest USA in the early to mid 1980s. K rad, k bye, and k cool were alternatives to just "bye" on the phone, and later trickled into BBS sysop quit messages. k-kool also appeared on BBS's.

caller: I should have the file uploaded in 30 seconds.

receiver: k rad, got it.

caller: k bye

K rad by Clewin January 4, 2006

k-rad 

K-rad literally means 1000 times rad, just as a kbyte or kilobyte refers to around 1000 bytes.

K-rad was made popular in the 1980s by computer hacker circles. The word 'rad' reffered to a radical act performed by a hacker which deserved congratulations.

The term k-rad originated around the same time people started talking in numbers l1k3 th15. This type of language first started apearing on BBSes and FTP warez sites.

I h4v3 +h3 m05+ 733+, k-r4d 5k1llz 0n th3 n3+!!!!!!!!!!!!!!

(I have the most leet, k-rad skillz on the net!)

k-rad by listen.to/petecrane March 3, 2003

k-rad 

Short for "kilo rad", as in "kilo byte." This is old school 1337 slang, first popularized on BBS's.

h0KAY U K-RAD K00L GIE!

k-rad by boohiss December 9, 2003

k-rad 

For when one rad is just not enough.

That car is K-Rad

k-rad by me April 9, 2004

k-rad 

Term expressing 1337-nes or Ub3r-5k1lz. Common among WareZ d00dz.

1 4r3 t3h k-r4d kr4ck3r W4reZ d00d!! OMG HAXXXX!!!!

k-rad by counterspell September 13, 2004

k-rad 

Variation of "rad", itself an abbreviated form of "radical". Northern Californian in origin, specific to Berkeley, especially University of California math/computer science students. Usually considered "geeky".

Often used in conjunction with the modifier "hella", as in "Last month's Critical Mass bike ride was hella k-rad!"

k-rad by Carlos Pecciotto October 1, 2005