A level of anger where strapping one's self into a slingshot and being launched into a fortress, group of pigs etc. seems an acceptable course of action.

The most popular and addicting app out there

Commonly mistaken for the popular video game. This activity involves and usually occurs during prolonged car journeys; the individual(s), to pass the time and amuse themselves, resort to flipping the 'bird' at random pedestrians and other vehicles in hope of deriving an amusing/aggressive reaction. One should use it with caution especially when both vehicles are stationary.

The most addicting iPhone game you will ever play. Ever.

An app with green pigs who steal eggs from birds who can't ever remember to keep them safe and get really pissed when they get stolen, even though they should've done a better job protecting them.

When one person shakes their sexual partner repeatedly until their partner reaches an orgasm

This is an incredibly addicting and annoying iPhone game. In the game, there is a slingshot used to launch birds at pigs. Really, there is no point to this game since it takes away from your social life and it annoys your girlfriends/boyfriends. It also can teach kids that it is OK to launch birds in slingshots. This is definitely not something we want.