A nickname for Blackberry, usually used when a person is addicted to their Blackberry, and/or uses it in places their not supposed to (i.e., dinner table, cocktail party, etc.)
B: *click click* "Joe called Sara who texted C.C. who emailed Fred who chatted to Bob that Georgia and Ramone are both getting amputations after they have kids!"
G: "JERRY! NO CRACKBERRY AT THE TABLE!"
K: "Yea Dad. No Crackberry." *click click*