ball paper 

verb. photographing one's testicles and setting the photo as the wall paper on someone else's phone without their knowledge.

Don't leave you're phone on the bar at the Coo Coo Nest. Kyle will ball paper it.

ball paper by jesse the destroyer July 25, 2014

ROBLOX Paper Ball Simulator 

A simulator in Roblox where you have to throw Paper Balls or Paper Products to gain money (what's up with that?). When you throw a paper ball, it goes into your backpack (again, what's up with that?), and you can sell it for money (what's up with that!? Is the buyer of these paper balls in your backpack a murderer which wants you to weaken the victims to kill them, like Moriarty who sponsored the cabby in A Study in Pink (Sherlock Holmes), but the cabby was actually killing the victims, not Moriarty.) You can buy bigger backpacks from the "Buy" section. You can also buy new Paper Aproducts to "weaken"the walls (you can buy a new area once you reach enough money). There are also codes, but I won't talk about them.

ROBLOX Paper Ball Simulator: New update! 1. New boss! You can throw paper balls at it to kill it!
Me: Yet again, I don't want to kill anyone.

ROBLOX Paper Ball Simulator by Lol Memes ;) August 3, 2020

Ballpapering 

This is when your smartphone is hijacked (usually by a friend because you were stupid and didn't secure it with a passcode) and a picture of (usually their) genitals is used as the wallpaper, particularly the lock screen.

We are ballpapering johnny's phone with a picture of a big black penis found on google.

Ballpapering by boom_boom October 31, 2014