Hist Humor on Instagram: "This viral clip features a woman jokingly replacing every "S" sound with a "Z" sound while ordering at a fast-food drive-thru. ​The Subject The speaker utilizes a phonetic substitution technique, consistently swapping the voiceless alveolar fricative /s/ for its voiced counterpart /z/. ​The Mechanism By vibrating the vocal cords during the articulation of sibilant sounds, the speaker creates a "buzzing" effect. This transformation is applied to nouns, adjectives, and fu