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A term used by the Hip-Hop artist Fat Joe in many of his songs. Fat Joe always loved math as a child and wanted to work his love for math into his rhymes in an unsuspicious manner, so he took the word calculator and shortened it to the nearly unrecognizable form know as "calca."
Baby, you can't keep a secret from calca.

Throwin some figures straight from calca, these numbers don't lie.

by stickman_989 March 02, 2008
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