A rule, law, or other statute which has been bent, defied, and/or otherwise violated for the specific purpose of personally benefiting the perpetrator.
"Well, if a Hillarule is invoked, the Democrats in Michigan and Florida will actually have their 2007 primary election votes counted as valid."
when you're holding up your phone and making faces at it, as though you are taking a selfie, but you're really taking a picture of the person across from you or the wall or anything else that seems interesting but you don't want to be caught dead taking a picture of.
This action is often made more convincing by wiggling the eyebrows or opening the mouth, to pretend you're trying to get a Snapchat filter to work.