Little reliable information is available about the original recording behind the Toby Be Good clip, so its life has mainly been online as a shareable soundboard and meme sound. It spread through short-form edits where creators needed a quick, recognisable way to tell a person, pet or character to behave without explaining the joke. The name Toby makes the warning feel oddly specific, which adds to the humour when it is applied to anyone misbehaving. It remains popular because the line is short, quotable and instantly understood.