dead dove

Etymology
A reference to a scene from Arrested Development in which a character inspects a bag labelled "Dead Dove: Do Not Eat", opens it to see what's inside, and then (having found a dead dove) remarks that he isn't sure what he was expecting.

Noun

 * 1)  A disclaimer or tag for a fan fiction, particularly on Archive of Our Own, meant to signify that the fan fiction contains the content that is described as being in it, and as such, readers shouldn't be surprised and shouldn't complain about finding said content therein.
 * 2)  A fan fiction that is particularly disturbing or disgusting due to its subject matter.
 * 3)  Such fan fiction collectively.