KCB

“Keep Coming Back!” Used by 12-step veterans as a polite way of saying to newcomers (and veteran dumbasses): “you’re full of shit” or “ take your head out of your ass — if you keep coming back, eventually you may ‘get it’!”

KCB (and eventually you’ll understand a better way of thinking more suited to make you and others around you happy, joyous and free)!

by Lamar P. Flophouser May 10, 2018

KCB

Stands for "K Cool Bye". Term used by people raging, annoyed, or upset on the internet. Especially used by teenage girls.

KCB!!

by thekvmaster September 24, 2011

KCB

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 October 27, 2008

KCB

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