The use of nudity, most often female, to accentuate
a disturbing or graphic scene in a film
. The viewer is unnerved by the contents of the scene, and the corresponding nudity serves to further disturb the audience by juxtaposing
two physiologically contrasting images. It is most often rear nudity that is portrayed, because of its less offensive nature. It is mostly applied to women, because of the trope
that nude men are funny
This can also be executed in other entertainment mediums, but the visual nature of film allows great effectiveness.
Common in horror series such as "Saw", and other splatter film franchises.
"The killer approached Angela as blood from his chainsaw oozed onto her bare body, drenching her curves in thick red gore. Her sad ass quivered in fear"
A SFW example is found in the "Spring Breakers" trailer