Sadie Farrell (fl. 1869) American criminal, gang leader and river pirate known as "Sadie the Goat". She first came to prominence as a vicious street mugger in New York's "Bloody" Fourth Ward. Upon encountering a lone traveler, she would headbutt men in the stomach and her male accomplice would hit the victim with a slung-shot and rob them. Sadie, according to popular underworld lore, was engaged in a longtime feud with rival female bouncer Gallus Mag who once bit off her ear in a bar fight.