Jaaaaaaaack is used when you are on bluetooth in a public place. Generaly you tend to keep quiet and silently giggle as some 'certain names' but when you suddenly shout out a name it is called: Jaaaaaaaack
*looking on bluetooth, searching, searching...., find 'Jack'
Person searching suddenly shouts...*
"Jaaaaaaaack" and everyone stares, the person then runs to the nearest bin and hides....
by Ha-Tee September 28, 2010
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