The line comes from Toad, the cheerful mushroom-headed attendant in Nintendo's Mario universe, speaking during Mario Party 2 for the Nintendo 64. In the party game, Toad hosts boards and mini-games, and his high voice became a familiar part of multiplayer sessions shared by friends in the late 1990s and early 2000s. Clips later circulated on soundboards and in short edits, where listeners jokingly heard the phrase as 'Oh gay'. That mishearing, rather than the original context, keeps the clip circulating as a light reaction sound.