A Dillberry is someone who does not take good care of there hygiene and normally has serious amount of pimples around his body. Normally a Dillberry will also have a big Ego to accompany the stench they give off.
Person 1: Hey what's that horrible smell?
Person 2: Oh that's Charlos.
Person 1: Does he not take showers?
Person 2: No! he's an absolute Dillberry!
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.
FRIEND A: "Did you just take a stealthie of me?"
FRIEND B (turning phone around): "no I was just using snapchat's new filter, see?"