A modern or "hip" term for inserting ones dick into another's hoochie.
Random fuck boy: "DUDE I AM GOING TO BE PUTTING POKEBALLS IN THE ITEMS POCKET"
Random fuck boy 2: "What does that even mean?"
Random fuck boy 1: "I DON'T KNOW BUT IT SOUNDS FUCKING INTENSE!"
The ability to say things over the phone that normally would be difficult to convey.
Todd: Man, I can't believe Lisa called me a cunt rag!
James: Don't worry about it man, she wouldn't have said that to your face, she just grew some phoneballs.
A small quantity of human faeces sculpted into a perfect sphere for use as a projectile.
Origin: In March 2012 during the Pokémon Video Game Championships in Birmingham, UK, the Spanish team were evicted from their hotel after allegedly engaging each other in faecal warfare in the hotel corridors. (Source: Nitendolife website)
A particularly strong kind of Ecstasy / MDMA pill. Pokeballs generally have a reputation of containing a solid dose of pure MDMA -- though not every "pokeball" pill is guaranteed to live up to this expectation, most do.
Pokeballs are thicker than the typical MDMA pill, come in a variety of colors, and usually are stamped with a logo (like a butterfly) on one side and a "pokeball" score on the other side.
"That white butterfly pokeball hit me so good last night I only needed one pill for the whole night!"