The act of examining the physical damage to your underwear your recent shart has done mid-day. Effects may worsen if you have done this at a sleepover and left your underwear hanging around on accident, striking fear in your friends and foes' hearts.
Burt: "Woah, look at this sharterror. This thing is f*cking nasty!"
Mike: "That's not a sharterror, that's a mirror."
To use your BlackBerry phone to slap someone near you, preferably using the backside of the phone to hit the cheek of the offender.
John: "Dude, leave me alone or i'm gonna slapberry you."
Dude: "What the hell is slapberry? Bring it on."
(John slapberries Dude)
Dude: "Fuck, didn't see that coming."