1 definition by dmc375

The most dangerous form of shiv involves the prisoner using matches or a lighter (both felony level contraband) to burn a toothbrush into the shape of a spike. The spike is most commonly stabbed into the eye or genitals of the intended target.
He put his eye out with his toothbrush shank
by dmc375 November 15, 2011
Get the shank mug.