when you have 3 fingers and you have one anus. You insert the fingers into the anus and wiggle them about. Whilst doing this you shout 'Floffle, Floffle, Floffe'
A mixture of ROFL and Waffle, floffle is derived from drinking one night and general oddness. It can be used as conversation stopper also. Can only be used amongst friends, unless you want to freak out strangers.
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.