Definitions by Clewin

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