7. Goldie Lookin Chain “Your Mother’s Got a Penis” (2004)

Nastiest lyric: "She walks around proud, with a short dress on/ Which sometimes exposes the tip of her dong."

Though not necessarily a high point of Welsh hip-hop, GLC’s track did make it into the British top twenty. They’re not insulting your mother, just telling you about her sex-change operation—part of a crusade to make fun of clichéd rap lyrics and society in general, as in their equally popular “Guns Don’t Kill People, Rappers Do.”