Mr. Slave is the husband of Big Gay Al and the ex-boyfriend of Herbert Garrison. He first appears in the Season Five episode 'Butters' Very Own Episode', although he is only heard. He is then seen physically in 'The Death Camp of Tolerance'. He was the homosexual lover of Herbert Garrison, and his teaching aid before the latter had sex reassignment surgery. Mr. Slave's catchphrases are 'Ooh, Jesus Christ!' or 'Oh Jesus, Jesus Christ!', delivered in a quavering lisp. He is rarely heard saying anything other than these catchphrases. His first major role was in 'The Death Camp of Tolerance', in which Mr. Garrison, the elementary school teacher of the main characters, learns that he can sue the education board for a lot of money if he is fired for being gay, and does his best to ensure this happens. To this end he hires Mr. Slave as his classroom assistant, or, for short, 'teacher's ass.' The lessons become increasingly sexual, and degenerate in nature, culminating in Mr. Garrison inserting the class gerbil, Lemmiwinks, into Mr. Slave's rectum. (Source: Fandom.com, CC BY-SA)