The Hayes code was in censorship code imposed during the making of Blonde Venus as the assigned article outlines in further detail. However I felt the article was a bit spartan in terms of the actual realities of the Hayes code while it was in action.

In Blonde Venus there were numerous sexual innuendoes and raunchy humor which were explicitly banned by the Hayes Code. However directors under the Hayes Code were clever, they knew if they were able to fool the censor through metaphor and word play they could keep their content relatively unchanged.

A better example perhaps is the Film Bringing Up Baby. The film is relatively tame under the standards of the Hayes Code however due to a simple visual gag and clever writing the opening of the film is overtly sexual in nature and hilarious once the visual gag is revealed. (look it up on youtube, once you get the joke you’ll know)