The word koalawazza is used in an argument toward an individual whom has taken all your ideas and insults so thus you are left with saying koalawazza to fill in sentences. This word will confuse your enemy and thus you have the upper hand.
Roger: Jehan you're repeating everything i say, you're horrible at insults and thinking of things to say.
Jehan: Your face is horrible at insults
Roger: KOALAWAZZAed your mom then i went and bought some more koalawazza.
Jehan: What? Uhhhh!
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.