Facediarrhea
The almost-convulsive act of posting a lot of random or related posts on Facebook all within the span of minutes.
The other day I noticed that Shirley (in memory of Leslie Nielsen who died yesterday) after having drank 4 cups of coffee spent most of her morning suffering from Facediarrhea, making all kinds of posts about nothing that made any sense. Maybe she shouldn't be allowed on Facebook any longer, since we are suffering from it as well.