Definition of sappy adjective from the Oxford Advanced American Dictionary

     

    sappy

     adjective
    adjective
    NAmE//ˈsæpi//
     
    (sappier, sappiest)
     
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  1. 1 (informal) silly and sentimental; full of unnecessary emotion sappy love songs
  2. 2(of plants) full of sap (= liquid)
See the Oxford Advanced Learner's Dictionary entry: sappy