2)a coke that's not supposed to be there or your friends shouldn't know its there or why its there.
3)a coke that doesn't talk because cokes don't talk
guy: (damn it i shouldn't not have ordered pure tequila on a cup, its not even chilled! i need a silent coke!) yeah, i know right? this food is really good, could really use a soda, waiter could you fetch me a coke(silent coke)?