Stands for "K Cool Bye". Term used by people raging, annoyed, or upset on the internet. Especially used by teenage girls.
by thekvmaster May 24, 2011
2 more definitions
An acronym standing for King Cock Block. One who has mastered the art of the cock block.
I was about to score with that hot ass blonde at the bar until KCB Rob showed up and totally undermined my Jedi mind tricks.
by wheeeeeeew September 11, 2008
Acronym standing for Key Colony Beach, a small city near Marathon, Florida. Often used in fishing reports as a location.
"Two sailfish caught 12 miles south of KCB"
by Teh win!!1 November 10, 2006