It means a wide smile.
Yes: grins is the plural of grin.
A grin is a wide smile that shows the teeth. A giggle is a quiet laugh.If you use the phrase "We just did it for grins and giggles" then obviously you did it so that you would grin and giggle, or have fun.
two characters
grins
There is an eagle on US currency, and holding on to it till the eagle grins is kind of like holding on to it forever, because the eagle is never going to grin.
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just for fun
i am yours Grins :~)
The anagrams are rings and grins.
Grin. there are grins in Manchester leeds and Liverpool