Definition of flip side noun from the Oxford Advanced American Dictionary

     

    flip side

     noun
    noun
     
    [usually singular]flip side (of/to something)
     
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  1. 1a different way of looking at an idea, argument, or action It was only after they were married that she began to see the flip side of the fairy tale.
  2. 2(old-fashioned) the side of a record that does not have the main song or piece of music on it
See the Oxford Advanced Learner's Dictionary entry: flip side