Beavis and Butt-Head premiered on MTV in 1993, created by Mike Judge, and the duo's constant giggling became as famous as their music video commentary. Their laugh spread first through TV reruns and early internet soundboards, then into meme edits and reaction videos where a short burst signals juvenile amusement. It sits alongside other cartoon laughs like Nelson's HA-HA! in online culture, but its breathy, overlapping delivery is distinct. Decades later it remains shorthand for finding something dumb, crude or pointless genuinely funny.