When u have a crack lighter too close to your fingers it burns (usually from heated swishers to mild them to sticking)
by Weed lord May 3, 2018
Callous on the inside part of the top joint of the thumb, due to excessive flicking of your Bic. Slang common amongst suspicious psychiatrists.
by Steve O'Rourke and Angelia LaFlamme March 10, 2008
My index finger is my crack finger
by Dubiks December 20, 2018
say it backwards,i dare you
by dank memist May 24, 2019
A very bad habit that millions of people have, producing an irritating "cracking" sound. You'll know it when you hear it, or see someone doing it.
by Flatlander April 16, 2005