the.com/bootleg

means An unauthorized recording, copy, or bottle of liquor made and distributed outside legal channels.

from From 'boot leg' — the actual leg-shaped tube of a tall boot. In 19th-century America, smugglers and small-time crooks would slide flasks of illegal liquor down inside their boots to hide them from the law, literally 'bootlegging' the goods. The word stuck to the act of covert dealing itself, and when Prohibition hit in the 1920s it became the term for illicit booze. From there it spread naturally to any unauthorized copy — pirated records, smuggled tapes, counterfeit goods — anything moved or made outside official approval, still carrying that boot-leg whiff of something hidden and a little outlaw.