[5] After Young left the strip to create Blondie, Paul Fung took over Dumb Dora.

This frequently resulted in the strip ending with a character saying of Dora "She ain't so dumb!"

[7][6] According to slang glossaries of the early 1920s, the term "dumb Dora" referred to any young woman who was scatter-brained or stupid.

[9][10] The epithet "Dumb Dora" became identified with the vaudeville act of George Burns and his wife, Gracie Allen,[5] as did a similar slang expression for a female who was not very bright, but in a charming way: "dizzy dame.

"[11] In the vaudeville era, as well as during the period from the Golden Age of Radio through the first several decades of television, female comedians were often expected to play a "Dumb Dora" or "Dizzy Dame" role,[12] even if in real life, they were very intelligent.