Sappy (adjective)

1. Excessively sentimental or emotional; excessively or cloyingly sweet.
2. Lacking in strength or vitality; weak or feeble.

Origin:

The origin of the word sappy is uncertain, but it is believed to be related to the word "sap" which refers to the fluid that circulates in plants.

Examples:

1. The movie was sappy and overly sentimental, with a predictable and cliche-ridden plot.
2. The novel was sappy and full of cloying sentimentality, making it hard to take seriously.
3. He was sappy in his declaration of love, making her feel uncomfortable.
4. The sappy dialogue in the play made it difficult to take the characters seriously.
5. The sappy music was making him feel nauseous.