It's a mole.
And by mole I mean the small burrowing rodent thing.
BTW this picture is completely real.
My grandpa has a license plate "number" with the first 3 letters being FAP.
It's also funny because he's uptight, somewhat racist, and fairly old fashioned.
Almost like Clint Eastwood in Gran Torino but without a Batman voice and not so scary.
I think before that, he had one with a license plate beginning with EGG.
Now each time I go outside, I point out amusing license plates.