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The "currency" used when paying for an item while using a computer or smart phone.

Follows the nomenclature of other established currencies which all start with the letter "c" – cash, credit, credit card, check, coin

Some times shortened to "chips"
When Joe said he didn't have any change for the vending machine Nicole said, "Just wave your phone at it. It takes chip change."
by strikeswhilehot October 19, 2010