Sksksk emerged in mid-2019 as the typed-out laugh of the VSCO girl, the scrunchie-and-hydro-flask teen aesthetic that dominated TikTok and Twitter that summer. Paired with the phrase and I oop, it became shorthand for a specific kind of chaotic, self-aware giggling. The spelling mimics a laugh too fast for real syllables, and creators soon recorded themselves performing it as an actual sound. It spread through reaction videos, thirst traps gone wrong and fail edits, and it endures because the laugh is instantly recognisable even to viewers who never lived through the original trend.