grinner (noun)

1. The grinner in the movie had a contagious smile that lit up the entire screen.

2. The mischievous grinner continuously pulled pranks on the other characters in the cartoon.

3. In the mystical world of unicorns and fairies, the grinner was known for spreading joy and laughter.

4. The grinner in the horror film unnerved the audience with their eerie and sinister smile.