Mickey Mouse is one of the most recognisable cartoon characters in the world, created at Walt Disney Studios and starring in animated shorts, films and television for nearly a century. His distinctive high voice and expressive reactions made short exclamations like this one easy to lift from cartoons and reuse online. On soundboards and in meme edits, Oh Mama became a shorthand for cartoonish surprise, because audiences already know the character and the tone instantly. That instant recognition keeps it useful for creators who want a quick, family-friendly reaction without needing context.