I would have guessed it to be from the opposite end-How did u recognize it? That’s really cool! That’s got to be some Bux to the right person (who has too many) I would have never guessed that!
There are no dinosaurs to be found in KY. This is not a tooth of any sort. This resembles a coprolite, but better images would be useful for a confident ID.
This page seems like it should be useful for helping with an ID. http://www.uky.edu/KGS/fossils/fossilid.php#s Unfortunately I'm not knowledgeable enough on fossils to help beyond that. Regardless of what exactly it is it's a great find, definitely more interesting than the fossils I tend to find in my neck of the woods! It's been ages since I found a fossil of anything other than a tiny clam.