An aggressive, meat-eating, prehistoric sea monster. Its body was composed entirely of mung, and it is believed that it was the size of several football fields. It smelled like shit.
While officially extinct, many still believe that the mungalodon lives on in the depths of the world's oceans.
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.