A device that came with the new 2010 Pokemon games, SoulSilver and HeartGold.
You can wifi your pokemon to this pedometer like thing, and with every step you take your pokemon gains happiness and experience. You can also attempt to catch pokemon or find items with this.
It's also an excuse to get Pokemon-Kids out of the house.
Mom-"Billy, take out the trash!"
Billy-"I wouldn't normally do this, but I shall today because while walking to the trash...I'LL BE TRAINING MY POKEMON WITH MY POKEWALKER!!!"
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!"
when playing 'Pokemon GO' you throw a pokeball at a pokemon and the game freezes so the pokeball which has the pokemon in it doesn't shake and you are forced to restart your game.