Definitions

1. adjective

excessively sentimental or emotionally manipulative

“The sappy love song made everyone in the room feel sentimental.”

2. noun

a sticky, saplike substance, especially from a tree

“The tree’s sappy sap was used for medicinal purposes.”

3. verb

to make (something) excessively sentimental or emotionally manipulative

“The movie sapped the audience with its overly sentimental ending.”