Poontangerang is poontang that you try to throw away, but it just keeps on coming back.
Rick: "Are you and Bethany still together?"
Steve: "You wouldn't think so. I haven't called her in like a week. I even slept with her sister, but that poontangerang keeps peepin' me up!"
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.