A diet coke that is drank in a corporate environment for the purpose of improving efficiency. Business cokes must be consumed when wearing at least business casual, and in cancer-inducing quantities.
"Got a lot to do today?"
"I did, but I just shotgunned four business cokes. This shit is pringles."

"I'm sorry, you're going to have to quit your job in investment banking. You have business coke-induced cancer. Business cancer."
by Business Mattr3ss August 2, 2009
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