Yes, a hyperbole is an exaggeration. Since no one could be as old as dirt then it is an exaggeration and a large one at that.
Yes, "as old as dirt" is a hyperbole. It is an exaggerated expression that implies something or someone is very old or ancient by comparing them to dirt, which is seen as something that has existed for a long time.
the cat was a million years old
The dog is so old, he played with wooly mammoths as a puppy.
Old Dirt Road was created on 1974-10-04.
hyberbilye hyperbole
Almost as old as dirt.
almost as old as water
The dog is so old, he played with wooly mammoths as a puppy.
Dirt
it is old as dirt. as old as Japan
Hyperbole
how old do you have to be to drive dirt bike in minnesota
characteristics of hyperbole