The action of creating a dopamine circuit between two or more people. For example, if two friends reciprocate a shared expression of happiness, it is considered as a form of flibberflabber.
"If I give you happiness and you give me happiness, that is considered as flibberflabber."
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.