A stump turtle?
When you drive along a long Texas road and come upon a turtle on a fence post, you stop because it’s such a strange thing. You realize the poor thing did not get up there by himself, he does not know how he got there, you just know he does not understand what he’s doing there, and you know he doesn’t know what he’s going to do next. Then you realize you have to do what you have to, to help the dumb bastard down
see post 67
I think it is a "post turtle". A turtle on a fencepost. You know he did not get there by himself, he doesn't know what to do now that he is there, and he can't get down.