Exploiting a popular franchise, usually film or television, and adding so many new installments that relevance wanes and audiences lose interest
The original Land Before Time was awesome, but now they have so many sequels, it seems they are milking a dead cow, and they just get worse and worse."
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.