cluck

The act of exchanging some item of value for a given controlled substance (or cash to be used in the purchase thereof), as carried out by an addict of that substance when an otherwise exhaustive search has failed to yield the funds necessary to support his habit. The quantity of drugs received for the object of a cluck tends be very small in relationship to the item's perceived market value. This discrepancy can be attributed to the efforts of the person receiving the cluck to capitalize on his knowledge that the clucker has reached a state of desperation, in which he is liable to forego any attachment to material possessions, as well as any remaining vestige of common sense (often to the point of inevitable regret), in exchange for the opportunity to satiate his physical cravings for even the shortest duration.