crack

The free base of cocaine, produced by mixing with baking powder and water. The cocaine hardens to white cinder chunks which can be smoked in a small pipe. The effect is immediate. This form of cocaine is held to be extremely addictive.

Crack may refer to:

Crack, a verb meaning "to break or snap apart" Crack, a noun meaning "a fissure, fracture, or flaw in a solid material resulting from cracking" Crack cocaine, a crudely freebased form of cocaine Crack Cocaine and Hip Hop Crack (economics), the value difference between a crude oil and oil products or between different oil products, usually expressed as a per-barrel value Crack, a vulgarism for the gluteal cleft, the separation between the buttocks Vocal crack, a sharp change in vocal characteristics Crack (software), a UNIX/Linux password cracking program for systems administrators Crack (craic), a dialect word common to Scotland and Ireland meaning "fun" CRACK, an acronym for "Children Requiring A Caring Kommunity", now called "Project Prevention" Crack Movement, a Mexican literary movement