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The act of clapping while maintaining a full and secure grip on one's blackberry mobile device between two fingers exposing the palm for a full clapping surface area.
Fred: hey man... I don't want to be rude and not clap but I'm in the middle of defining a word on urban dictionary on my crackberry!

Bob: dude... Just do the blackberry clap. Everyone knows it. And if you don't, learn it!
by Reggie squared May 25, 2007
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