verb
- smiling more broadly or more persistently than someone else; surpassing in grinning
Usage: present participle of 'outgrin'; informal
Examples
- The two friends were outgrinning each other across the table.
- She kept outgrinning her opponent during the competition.
- He was outgrinning everyone in the room with his infectious smile.
- They spent the afternoon outgrinning one another like children.
- No matter how hard he tried, he couldn't stop outgrinning his brother.