Examine this text and pull out the words that English speakers find unpleasant into a bulleted list. 

More broadly, the British linguist David Crystal has regarded phonaesthetics as the study of "phonaesthesia" (i.e., sound symbolism and phonesthemes): that not just words but even certain sound combinations carry meaning.[3] For example, he shows that English speakers tend to associate unpleasantness with the sound sl- in such words as sleazy, slime, slug, and slush,[4] or they associate repetition lacking any particular shape with -tter in such words as chatter, glitter, flutter, and shatter.[5]
-sleazy
-slime
-slug
-slush