grinny means having or resembling a grin. Lexicurio rates it Sui generis — a strength score of 87 out of 100.
adj
- Having or resembling a grin.“a grinny face”
noun
- An eastern chipmunk, Tamias striatus.“Reason thus, and if your heart beats till it hurts your ribs as a gray squirrel whisks across the dry leaves or a ‘grinny chipmunk’ waves you a derisive signal with his little flag from a log before your very nose, call yourself ‘fool,’ ‘idiot,’ anything that comes handy.”