Dull Dark Dock To sit in solemn silence in a dull, dark dock in a pestilential prison with a life-long lock, awaiting the sensation of a short, sharp shock from a cheap and chippy chopper with a big, black block. This tongue twister is absolutely filled with repeated sounds, including the consonant sounds d, l, s and b. There are also a number of more complicated sounds that you’ll get to practice, such as the sh in “short, sharp shock” and the ch in “cheap and chippy chopper.” These two sounds are often incorrectly pronounced the same way by English learners. As for vocabulary, pay attention to the following words: Dull — not bright or interesting Pestilential — causing infections or diseases Sensation — feeling