The Pennsylvania, Ohio, or West Virginia term for a chipmunk.
That damned grinny keeps getting into my attic!
Plural slang for golf club grips.
Jayv: Tyner, why are so you sad?
Tyner: I just really miss my grinnies :(
The feline counterpart to the creepypasta smile dog
It is usually referred to as "grinny"
My favorite creepypasta is grinny cat
That guy in class who always has the fucking answer (@ 8:30 am class)(not necessarily the right answer either)(but loves hearing his own voice regardless). And LOVES IT.
That John Paul in Arabic class, he's a real grinny mcdumbfuck.